Dr. Don Reed falls in love with a nightclub singer named Niki Carroll despite the warnings of his seriously ill father and her ex-boyfriend who both tell him she is not good for him. Niki accepts his marriage proposal, but Don's father dies when he hears the news. The newlyweds take an exotic honeymoon cruise with the inheritance money. During the cruise, Don becomes enraged when he sees Niki kissing another man and he accidently pushes him overboard. Niki convinces Don to keep his mouth shut and since no one saw the incident he gets away with murder. Niki eventually grows tired of him. She tells him that she is going to leave him. She also wants all his money or else she will tell the police about the murder. Niki also dumps her band leader boyfriend, but instead of accepting this he strangles her. The police call Don to the scene. He examines his wife's body in the bedroom and discovers that she is still alive. Believing that the band leader is going to take the rap for murder, Don finishes her off. When he rejoins the police he is shocked to learn that the police knew that Niki was still alive. They had told the bandleader she was dead in order to calm him down. The police then inform Don that they like to finish questioning her.

Luis Aguilar is a rich wine merchant who disowns his son when he refuses to marry beautiful vineyard owner Kitty Norris. At a party, however, Luis agrees to give his destitute son $5000 if boy can drink him under the table. Drinking his own wine called "Joyful Woman" Luis humiliates his son by outdrinking him. After the contest, Luis hits on Kitty who resists and pushes him down the stairs. When Luis's secretary Ruth witnesses the event she jealously kills Luis in the hope that Kitty will be blamed. Ruth wanted Luis all for herself. Unfortunately for Ruth, a waiter discovers the body and figures out that Luis did not die in a fall. Ruth knocks him unconscious and puts his body into a wine vat. She begins to fill the vat slowly with water. Later the police find Luis's body and begin the search for the waiter who was also the son of George Felse, an investigating police officer. The police can't locate the waiter but discoverd a now guilt-ridden Ruth who has tried to commit suicide with an overdose of sleeping pills. Ruth is barely conscious, but George manages to revive her long enough to get the truth and save his son from drowning.

Oscar Blenny is a timid bank clerk who discovers that his wife Eva is cheating on him. He demands a divorce and Eva agrees, but insists on a $50,000 settlement. She tells him to steal it from the bank, but Oscar is reluctant. Oscar is approached by Eva's tough hitman boyfriend Bill Grant. Bill suggests a double-cross. He will kill Eva for $250,000, but will get the money by robbing Oscar's bank with Oscar's help. He will then leave the country and leave Oscar free of Eva and apparantly innocent of any crime. Oscar agrees to Bill's plan, but sets up a triple-cross. Bill kills Eva, but when he comes to rob the bank Oscar pulls a gun and shoots him dead. Impressed by Oscar's courage, his boss promotes him to credit manager.

In an elaborate con, Ralph Mason marries a rich woman named Nora Cory for her money. Unfortunately his schemes goes awry when he murders one of her sons from a former marriage. As he attempts to make the death look like a suicide, he is caught by Nora as he is writing a fake suicide note. Nora collapses and falls into a paralyzed, yet conscious, state. She is bedridden and worried that her husband will try to kill her. She is also unable to speak and cannot tell anyone about her dangerous husband. When her nurse Jean Dekker allows her husband to adminster her medicine, she grows fearful that he will try to poison her. Fortunately, the nurse figures out a way to communicate with Nora. Nora squeezes her hand in response to yes or no questions. Jean discovers the truth about Ralph, but when Ralph finds out he tries to kill both Nora and Jean . Fortunately, Nora comes out of her paralysis in time to scream. She alerts her second son who manages to subdue Ralph before he can kill again.

Pemberton is a busy-body housewife who injects herself into the personal lives of everyone she knows: friends, relatives, her husband's business associates. Unfortunately she fails to realize that her constant attempts to give advice are alienating everyone. Her husband John is patient. He tries to tell her that her annoying behavior will cost them the last few friends that they have left. She refuses to listen. So, John decides to poison her.

David Chesterman is a thief whose girlfriend Maria is cheating on him with his partner Carl Gault. Carl has fallen in love with Maria and plans to get rid of David. He tells David about the body of rich man who is loaded with jewelry. David goes to rob the corpse, but is discovered by a guard. Later, the guard is found dead by police. David tells Maria that he is innocent, but he decides to hide out for a while and leaves Maria with Carl. Carl informs the police of David's location and he is arrested for murder. As David is about to be sentenced, Maria gets away from Carl by stabbing him. She heads to the court building convinced that David is innocent. She climbs on a ledge and threatens to jump unless David is brought to her and is allowed to tell the truth about the entire robbery. David is brought to her, but says he did kill the guard. Knowing that he will go to prison, David begs her for forgiveness.

One night when her husband is away, Karen Wilson is frightened when a man named Manuel Sanchez comes pounding on her door. He claims to be out of gas. Karen refuses to let him in and he must walk to a gas station. Later Karen hears a scream. She is told by the police that Sanchez's girlfriend who was waiting in the car was murdered while he was walking to the gas station. Karen suspects a neighboring writer named Simon Carter. The next evening Simon comes to Karen's home. She is rescued by her three surfing friends. Karen, however, is shocked to discover that her three friends are in fact the murderer's of Sanchez's girlfriend. They have her trapped, but she is rescued by Sanchez. He was returning to get even with her for contributing to the death of his girlfriend, but he manages to save her life instead.