Lisa says her daughter, Sara, is a drug addict who stole her own grandmother's identity; Sara says her mother is lying and has turned her children against her.

A plastic surgeon's 26-year-old daughter is a homeless alcoholic living on the streets with her ex-con baby-daddy.

The father of Austin Harrouff, a 19-year-old accused of stabbing a couple to death and injuring their neighbor, speaks out.

Wendy says her 23-year-old daughter has been manipulative and abusive for years; an update on a past guest who was at war with her children's grandmother.

Erik and his mother have had an ongoing battle with drug addiction, and he says she is the reason he has not been able to get clean.

Michelle says her sister spread lies about her to her late fiance's family, causing her not to receive money from a wrongful death settlement, and accuses her sister's child of molesting hers.

After 40 years of marriage, Lucy leaves town with her daughter's ex-husband and says she would choose him over her family.

A couple want a relationship with his father, but they say he misconstrues every attempt as some form of life-threatening conspiracy; Pat Smith (``Second Chances'').

Pat and his wife say that his father is delusional, violent, paranoid, and so dangerous that they fear for their family's safety.

Unwed parents who met on a dating app feud over cheating, violence and lies; the young woman's family must raise the couple's child while the people are absorbed in their drama.

Leslie Merritt Jr. discusses being locked up for nearly a year after being accused of being the Arizona freeway sniper.

An alcohol intervention for MLB star Richie Lewis; former teammate Deion Sanders surprises his dear friend.

A mother in a bitter custody battle is offered a polygraph test to prove that she has not coached her daughters to make false accusations of physical and sexual abuse against their father, but something causes her to storm off stage.

A mother in a bitter custody battle is offered a polygraph test to prove that she has not coached her daughters to make false accusations of physical and sexual abuse against their father, but something causes her to storm off stage.

A man accused of sexually abusing his children takes a polygraph; his girlfriend must choose between him and custody of her newborn son.

Jayson lost his rights to all of his children due to sexual abuse findings, but his girlfriend believes him when he says he never harmed them; her mother is convinced he is dangerous and guilty.

Former PTA president Kelli says that after a school spat, fellow parents framed her by stashing bags of drugs in her car; one of them, who has served time for her part in the incident, speaks out for the first time.

Jordan and Kyle accuse each other of physical abuse, and Jordan's mother has advice for her; Robin McGraw describes warning signs of an abusive relationship.

Jordan says she is tired of her fiance's physical and verbal abuse, but adds that she loves him so much she is afraid to leave him.

Young mother Amber says that when life gets tough, she checks herself into a mental hospital. Although she has 20 diagnoses, she doesn't believe any of them.

Ashley is accused of electronically stealing photos of another woman's children and posing as their mother online.

April says another woman is electronically stealing photos of her children and posing as their mother online.

Angie's teen son attempted to run over his ex-girlfriend with his car; the mother of unarmed 18-year-old Michael Brown, who was shot by a police officer in Ferguson, Mo.; Marian's unarmed son was also shot by a cop.

Christy's family says she is a neglectful parent who prefers questionable men and partying to her own children.

Courtney says her divorced mother traded in her children for a life of parties, drinking and men, resulting in two DUIs and a car accident that nearly killed her.

Allen says his controlling son-in-law has physically attacked him; his daughter says she has cut her father out of her life because of his poor choices.

Former safety companion Jamison, who spent five years in prison after being convicted of sexually assaulting a female hospital patient, maintains his innocence and insists he is the one who was attacked.

The man behind the photo of ``David Chris Jr.''; Dr. Phil hires an investigator to find answers for Barbara and her family.

Barbara has wired money to her online boyfriend, ``David Chris Jr.,'' whom she has never met in person because, he says, he is an overseas financial adviser on assignment in Nigeria.

Nick Gordon discusses the night Bobbi Kristina Brown drowned in the bathtub and fell into a deadly coma, and her final moments alive.

Nick Gordon discusses his private life with singer Whitney Houston and her daughter, Bobbi Kristina Brown, and the women's tragic deaths.

Shannon says her beautiful teenage daughter is a pathological liar and a catfish who needs psychological help; Dr. Phil reveals he was able to find the girl's biological father.

A woman who says she is a murder suspect's ex-girlfriend says he has a dark side; a woman tells about the night she was kidnapped and nearly murdered by serial killer Ted Bundy.

Kim says she was forced to step in and take guardianship of her grandson, who was living in a filthy home; the child's parents say she tricked them into signing over permanent guardianship to her.

Parents say their lazy 32-year-old son has forced them to put their retirement plans on hold, and their daughter says he threatens and terrorizes them.

Treva's daughters say she is a violent alcoholic who might be better off behind bars; Treva, who has been to rehab eight times, says that they do not work for her, and that her whole family needs an intervention.

A couple say their teen son hits them daily, touches his mother in inappropriate places, and has destroyed most of their furniture; Dr. Phil has an emotional heart-to-heart talk with the youth.

Stacey, a mother of six, tells of learning that her husband was cheating with an exotic dancer half his age; the former couple wonder if they should try to pick up the pieces and be a family again.

Sheri says that when she snooped through her daughter's cell phone she discovered that the young woman is keeping many secrets and telling many lies.

Rachel says her promising young daughter is belittled, mistreated and beaten down by her best friend and has dropped out of college.

Richard considers remarrying his ex-wife, who hoards collectibles and trash in her mold-infested home.

After her 2-year-old was diagnosed with symptoms commonly associated with shaken baby syndrome, Kayla was charged with felony child abuse and the boy's absentee father showed up and demanded custody.

Robert denies abducting and abusing his daughter and says an acquaintance's meddling got the child removed from his home.

An anorexic woman says she has only three months to live and does not trust her drug-addicted husband to care for her children.

A couple who have spent over $100,000 helping their 29-year-old heroin addict son want to stop bailing him out of trouble, so he can get clean and be involved in his 5-month-old daughter's life.

A custody battle between Jasen, his mother, and her sister, Genevieve, who has temporary custody of Jasen's 8 and 12-year-old children, has turned into a war over who is a more fit parent; Kim believes Genevieve stole her grandchildren.

A troubled 31-year-old father, who has been kicked out of the house by his parents for being lazy and jobless, admits to making mistakes and wants to improve his situation; an unexpected incident that occurred the morning of the show is revealed.

Maria and Paul need help with their violent 16-year-old daughter who started smoking at 10 and sneaking out of the house at 11; Maria admits to being afraid of her daughter and asks for Dr. Phil's help in regaining control of her.

Paul doesn't believe his explosive marriage to Julie can be fixed; Julie tries to be a good wife and isn't ready to give up on Paul despite his treating her like a child and calling her names.

Richard says his wife is being manipulated and guilted into continuing an affair with a childhood friend; the 2015 National Young Women of Distinction Gold Award Recipients.

Valerie says her husband is an emotionally stunted bully who favors one of their children, while the rest of their family is invisible to him; another child says she is counting down the years until she can move out; how to get out of a rut.

Preteen Aneska's parents say her rage and violence have them at their wits' end; Rachel wants her husband to put down his game controller and pay attention to her.

Violent 12-year-old Aneska says there are times when she feels like someone else is in control of her body; her parents say she has killed animals and has threatened to do the same to her mother.

Jonni has dedicated her life to finding her daughter, who disappeared two years ago after a night out with friends; Jonni's husband wants her focus to be on him and her stepchildren; an update on the disappearance of Dylan Redwine.

Elizabeth says her boyfriend's dominant personality is what drew her to him, but he soon became physically and verbally abusive.

An interview with Rachel Hutson, who, at 19 and with a history of mental illness, shot and killed her mother, then texted her father a photo of the dead body; the young woman comes face-to-face with her family for the first time since sentencing.

Chris says his ex-wife, Kelly, allowed their 14-year-old daughter to be intimate with a 28-year-old convicted sex offender; Kelly points out that Chris was investigated by the state after his daughter accused him of physical and sexual abuse.

Jared has anger and mood swings that he does not know how to control, and his wife fears his violent outbursts and threats to harm himself.

Brandon, 22, has been threatening to kill his parents daily since he was 10 years old and has been in and out of mental hospitals since he was 11; he says his parents are the problem, then walks off the stage; a woman transforms her life.

Chelsie is frustrated because she has to financially support her family, then come home to clean up after her baby and her husband, who has been unemployed throughout their marriage.

A woman says she lives in fear of her teen son, who is physically and verbally abusive toward her; the boy says he hits his mother in self-defense and presents Dr. Phil with evidence of her behavior at home; musician Dave Navarro (``Mourning Son'').

A woman's infant is taken from her after a visit to the ER uncovers bite marks and broken bones; she says he may have a medical condition that explains his injuries.

A woman who was, years ago, called the mistress of a husband on trial for murder denies the accusation and says it has taken a toll on her; Dr. Phil's new partnership with Life Reimagined.

A woman caught in a contentious custody battle with her 4-year-old daughter's father walks off stage; Dr. Phil asks the former couple to take polygraph tests.

Dr. Phil tries to get parents mired in a contentious custody battle to put their 4-year-old daughter's needs ahead of their own.

Jim's gambling addiction has lost him and his wife their cars, business and $300,000, and he once told her he had cancer and had to go to treatment so he could spend a few weeks at a casino undisturbed.

Karen says she is in danger because her brother is hacking her computers, cell phones and cars, and is having her followed around the clock; he denies her allegations and says she has paranoia from drug use.

Former teacher Tanya Ramirez, who had sex with a 17-year-old who attended the school where she taught, sues him and his mother, and they face off on stage.

Marissa says her father, a former pastor, had an affair and visited porn and call-girl websites, and she urges her mother to divorce him; a bounty hunter adds detail to the case.

Stephanie's 21-year-old son dies after falling from a 15-foot stair railing, and she blames his girlfriend for his death; the young woman says that he was drunk and lost his balance, and that she has been the target of a witch hunt.

Pat believes that her husband has been poisoning her food and injecting her with poison as she sleeps so he can molest their three teenage daughters; he says she has paranoid, delusional mental illness; Dr. Phil talks with the girls.

Dr. Phil extends a radical offer of help to twin sisters who are homeless and will do anything to score drugs.

Amanda says her father sexually abused her for more than a decade, but some family members refuse to believe her; what he said to her in a phone call recorded by police; she takes a polygraph exam.

Amanda says her father molested her for 15 years; her mother and other family members refuse to believe her, but her grandmother says they are in denial; the three women come face-to-face to get to the bottom of what happened.

Prosecutor Juan Martinez reveals behind-the-scenes details that happened during the trial of Jodi Arias for the murder of ex-boyfriend Travis Alexander; one of the jurors sheds light on what deadlocked a jury; Alexander's sister Tanisha speaks out.

Since the biological mother of her daughter has gotten out of control, Jyllian has filed a restraining order against her because she fears the woman will kidnap the child.

Eight years ago, when authorities found a homeless woman living in a car with her daughters and newborn granddaughter, they placed the girls in foster care, and the infant was adopted. Now, the family wants custody of the child.

The family of Nicole Lovell, a 13-year-old lured from her home and stabbed to death, tell what they know of the mysterious tragedy.

A couple say their new neighbors have been a constant source of conflict, making threats and false police reports, and allowing their four dogs to bark all night; the three neighbors accuse the couple of making up lies about them.

A 560-pound man says he is going on an epic bike ride across America to lose weight, write a book and save his marriage. When thousands of dollars roll into his GoFundMe campaign, critics say he is just a con artist; he confronts them on stage.

Kris, 43, has been chasing his dream of being a rock and roll superstar his entire life. He says he's "addicted to fame" and just like a drug addiction, the pursuit of his dream has cost him everything. He says he has destroyed relationships and two weeks ago, Kris' fiancée broke up with him because of what she calls his "selfish ways", and they are currently not speaking. Kris admits he has manipulated friends and family into giving him hundreds of thousands of dollars toward his rock dream, and so far, nothing has come of it. Kris' rock idol, Gene Simmons from KISS, makes a surprise appearance to help set Kris straight. And, Dr. Phil tells Kris what he must do to get his life back on track.

Dr. Phil goes behind bars to speak with Amber Hilberling, whose new husband fell to his death from the window of their luxury high-rise apartment.

Newlywed and expectant father Josh falls to his death from the window of his luxury high-rise apartment; his wife, Amber, says it was an accident but is convicted of murder; Dr. Phil goes behind bars to speak with her.

After only four months of living with his adoptive family, young Andrew died of salt intoxication; his mother's murder conviction has been overturned and the charges dismissed.

Some of the key people involved in the O.J. Simpson murder trial voice concern that they will be misrepresented onscreen.

Angel says her mother allowed her grandfather to molest her, knowing he had molested other children in the past; her mother says she never thought her dying father could harm her children.

Socialite Anita says she was duped out of her fortune by NFL player Art Schlichter, who then pressured her to borrow money from others; her former housekeeper suggests Anita may be a co-conspirator.

Lisa and Jana have fought over their late mother's estate for five years; Miranda says her mother is obsessed with looking like a stripper.

A man and a woman who met only once marry and bring their seven children under one roof, and life is not what anyone expected.

Adrienne says her drug-addict brother's lying and manipulative ways are killing their parents, and the family reunites on Dr. Phil's stage.

Police incident reports may reveal what has been going on in the home in which Elizabeth and her 21-year-old daughter accuse each other of physical abuse; teen clairvoyant medium Tyler Henry.

Megan says her 18-year-old son's fiancee got pregnant to trap him after learning he is going to receive a large inheritance; the young woman says she is tired of Megan calling her awful names and wants her to stay out of the couple's relationship.

Julia and her husband believe she is a prophet and able to work miracles; her parents try to get custody of the couple's children away from them.

Susie says her daughter neglects her parental duties to spend time with her boyfriend, who has a history of drug use and a criminal record.

A documentary leads viewers to believe that Steven Avery, sentenced to life in prison for murder, is not guilty; the man who was sheriff during Avery's trial delves into the details of the case.

HLN's Nancy Grace discusses the case of Steven Avery, exonerated by DNA after 18 years in prison for rape, then convicted and sentenced to life in prison for the murder of another woman.

Teen Peyton's sisters say she is a master manipulator who preys on their mother's emotions; the girl makes a shocking confession.

A couple are charged with abusing some of their six internationally adopted children, and the new adoptive parents of two of the children say their prison sentences are not long enough; journalist Piers Morgan discusses the case.

Laurie believes her 23-year-old son has multiple personalities and many other disorders; her sister says he is a moocher who has been manipulating his mother to get what he wants and avoid working.

Angela says her ex-boyfriend has ties to a child pornography scandal and has physically and sexually abused their 2-year-old, so she wants his parental rights revoked; he denies her accusations and says she is just being vindictive.

Ruth and her husband say her 20-year-old daughter's lies are ruining their lives and have landed them both behind bars; the young woman admits she lies but says she does not know why.

A woman and her fiance react to revelations from her 15-year-old daughter about what happened when the girl disappeared.

A 15-year-old tells what happened when she went missing.

Debbie's son and daughter say their mother refuses to move past the tragedy of their 16-year-old sister's death, and the family is falling apart; John Stamos (``Grandfathered'').

When Alyssa leaves her controlling husband, her mother fears he is desperate and capable of anything; Rachael Ray (``Everyone Is Italian on Sunday'') helps a couple.

Belinda, 44, says bringing a ``sister wife'' into her marriage is a ``beautiful thing''; her husband says the backlash to their lifestyle from the community and social media has been so severe that he fears for their safety; Pastor Joel Osteen.

Dr. Phil must determine whether a young woman is addicted to anti-anxiety medication, or whether her family is overreacting.

Scott insists he was not drunk when he fell down a flight of stairs and says he has his drinking under control, but his family tells a different story; the winner of the Walk a Day in Robin's Shoes campaign tells her story of domestic violence.

Daniela says her husband has been fighting the debilitating symptoms of PTSD and she resents her mother, with whom they live, for calling him lazy and worthless because he does not support his wife and child.

Teen girls and their grandmother are concerned by the girls' mother's promiscuous behavior and choice to party with men rather than be a mom; she says she is ready to cut ties if they do not stop ganging up on her.

Nadine has had a lifelong obsession with being thin; Jeannea says she fears losing weight may ruin her marriage; a 25-year-old blames her weight for never having a boyfriend; a young mom says her weight has not changed since she had her second child.

Sadie is a full-time high-school teacher, a beauty queen and a candidate for political office; Courtney has OCD and spends most of her time trying to avoid germs.

John's wife has terminal cancer, and when she is gone he may have to co-parent her children with her ex, Rick, who they say is a narcissist, drug addict and thief; Rick says his ex-wife's cancer diagnosis may be a scam to get donations.

Nicholas Brendon (``Buffy the Vampire Slayer,'' ``Criminal Minds'') returns to face his struggle with alcoholism and depression.

The divorced mother of an intersex 4-year-old allows the child to change from looking and acting like a girl to a boy, and the child's father, furious that he was not consulted, insists that the child be a girl when they are together on the weekends.

Lauren wants her mother to kick her drug-addicted father out of their lives; another incident involving another woman may be the breaking point.

Lauren says her mother encouraged her to drop out of high school and stole her identity, while her father stole breast pumps and used drugs and alcohol to bond with her.

Police say a substitute teacher's blood-alcohol level was three times the legal limit, and video of their encounter in the school parking lot looks like a lesson in bad behavior; Dr. Phil guest stars on ``Crazy Ex-Girlfriend.''

Michael Lohan tells what he says happened the night in November 2015 when he lost custody of his two toddler sons with his wife Kate Major, who he says is a volatile, ``raging alcoholic.''

Aspiring model Stephen, 20, posts online claims that he was abused by his parents as a child; they say he is the one who is hostile and abusive, so much so that he once had to be institutionalized; the family meets for the first time in months.

Tina says her children lived in a house of horrors with their father and stepmother; two of the eldest speak out for the first time about the conditions they say they endured.

Eighteen-year-old Alexis' biological father says her mother, Gina, accused him of molesting her when she was a toddler, and he wants to prove his innocence.

Eighteen-year-old Alexis' parents fear that her boyfriend kidnapped her and held her hostage -- a claim the young couple both deny.

Travis says his wife of eight years, Jenna, has filed for divorce because she has fallen in love with a celebrity; Jenna counters that Travis is abusive, and she feels that her love for the country music star is the kind of love she deserves.

A 36-year-old mother of four who landed behind bars for running a surrogacy scam comes face to face with one of the childless couples whose money and hopes of parenthood she stole.

Dr. Phil offers polygraph and drug tests to Joey and his ex-wife, Sandra, who accuses him of abuse, neglect and inappropriate conduct with their two young daughters.

Divorced mother Sandra says her daughters tell her worrisome things after visiting with their father, and she fears for their lives.

Karie says her husband bullied her into signing a postnuptial agreement that entitles her to nothing if they ever divorce, but Michael insists he did not bully her and her cheating past made it a necessity.