When a beloved woman goes missing in Everett, Wash., police find that her apartment was the scene of a violent attack.

When two men disappear in the quiet community of Clemmons, N.C., rumors swirl about a devil-worshipping couple and their house of horrors.

Halloween turns into a real-life horror movie when a single mother is gunned down on her way home from trick-or-treating by a costumed killer in Florida. Detectives uncover an unexpected witness that helps reveal the monster behind the mask.

When a loving father is shot to death in front of his home by a masked gunman on Halloween night, Los Angeles Police must follow the evidence to determine whether this was a case of holiday hijinks gone awry or something far more sinister.

When an Iowa mother and her newborn son are reported missing, police are in a race against time to rescue the pair and stop a maniacal woman from enacting a dangerous plan.

Rumors spread through a small town in Indiana after a well-known resident is found dead in his home after hosting a party. Authorities investigate accusations from the partygoers to expose how a toxic love triangle turned deadly.

The coastal community of Sargent, Texas is thrown into shock when a beloved retiree is found executed in his home. As the investigation unfolds, an unlikely witness comes forward and leads investigators to uncover a malicious murder plot.

After the body of a young San Antonio man is found dumped in a local cemetery, investigators retrace the victim's steps to untangle a web of deceit that begins with a heartless woman.

When a beloved father and driven entrepreneur is fatally shot at a busy California intersection, authorities discover a recent business venture that led one partnership to turn deadly.

After responding to a frantic 911 call from a care-facility nurse who has discovered her patient with severe stab wounds and clinging to life, police receive an unexpected tip that reveals a group of killers inspired by greed.

After a demolition derby driver is found gunned down in his California auto shop, police uncover a dangerous love match that led one woman to commit the ultimate crime.

When Texas authorities learn of a murder-for-hire plot against an acclaimed boxer, they must devise an undercover sting operation and race against the clock to save his life and expose the remorseless mastermind.

A family demands answers when the body of an Arizona woman is discovered in a remote area of Texas. Evidence left behind leads investigators to unravel a web of deceit until a shocking confession reveals the true mastermind.

When human remains are discovered by road workers in West Virginia, a decades-old missing person's case is reopened and investigators are left to unravel an extensive history of scams and violence, leading them to a malicious con-woman.

After skeletal remains are uncovered at a makeshift dumpsite in Fort Sumner, N.M., investigators are left to untangle a complicated family history that reveals the callous truth behind what happened.

After three Atlanta men are gunned down in the span of three days, detectives connect the murders to two exotic dancers; knowing only their stage names, investigators race to find the women and uncover the motive behind this devastating crime spree.

When a renowned Missouri snake breeder is discovered in a pool of blood, investigators believe his death was caused by one of his snakes; however, shocking evidence is found on scene, launching a homicide investigation that unveils a sinister plot.

When a local EMT dies in a suspicious house fire in Mississippi, investigators work for two years to expose the mastermind behind her death and uncover a greedy scheme from an unlikely source.

After a welfare check is called in on a 53-year-old Texas man, police soon discover him shot to death in a Louisiana swamp that's 450 miles from his home; detectives devise a sting operation to track down his killer and reveal a vengeful murder plot.

When a father is found shot to death in his country home, the family immediately accuses the victim's on-again/off-again ex-spouse; however, evidence soon suggests there might be more players to blame than simply a woman scorned.

When a prominent Florida optometrist is bludgeoned to death in his home, Melbourne police must investigate claims of self-defense; the evidence trail leads them to a young witness who reveals a wicked murder plot.

After the bloody slaying of two men in rural South Carolina, a witness comes forward with information implicating her own family, leaving police to uncover if blood really is thicker than water.

California police receive a bizarre 911 call from an attorney who informs them of a death but won't share more details; an eerie feeling of déjà vu covers the investigation when detectives learn the details of a 30-year-old case in the same home.

Cosby, Tenn., is shocked when a beloved father and pastor is found dead outside a ransacked house. Police question if this was a robbery gone wrong until an unexpected witness comes forward to reveal the disturbing truth.

After a loving father is found dead in the bedroom of his Oklahoma home by his ex-wife, Broken Arrow police must unpack a complex family dynamic and a loyalty based on greed in order to get answers.

After a dependable Florida man fails to show up for work, police believe that he left town of his own volition. As years go by, however, town rumors lead police to unearth a gruesome crime that had been long since buried.