Duke Marsden is about to lose his wife because of his gambling habits. She gives him an ultimatum: either give up poker or she leaves. He decides to give up poker. Later, Duke's younger brother Chuck arrives looking for a high-stakes game of poker. Duke arranges to have brother play a couple of his old poker buddies who would love to fleece a newcomer. Duke's plan goes awry when Chuck starts to clean house. After the losers call Duke to complain, Duke realizes that he must deal with the situation. He goes to the game and uses a marked deck to clean out Chuck. Chuck leaves, bitter and broke. Duke's old gambling buddies eye him suspiciously even after he offers them their lost money. They believe that Duke, who just cheated his own brother, had probably cheated them in the past as well. Duke arrives home mortally wounded. He apologizes to his wife and dies in her arms.

When three of his childhood pals break out of prison, Christopher Martin is in trouble. When he was younger, he and his pals committed a crime. All except Christopher were caught and sent to jail. Each of them vowed revenge. Christopher confesses his crime to his wife Helen though he fears she will leave him. Helen is shocked at first, but she agrees to help him proving that his fears were groundless. Together they foil the three prison escapees when they show up looking for revenge.

Hadley Purvis is an alcoholic advertising executive whose wife Sandra tells him that she will leave him if he takes another drink. Unfortunately, he drinks himself into a stupor. When he awakens he cannot remember anything that happened to him while he was drunk. He can't remember losing his job for being drunk during a presentation and he can't remember buying his wife a new scarf to prove that he had not been drinking. Ultimately, he discovers his wife's strangled body in his basement. Though he cannot remember, he realizes that, while he was drunk, he strangled her to death with the scarf he bought for her.

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.

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.

Jim Derry is a hit man who is hired to kill a bookie named Eddie Breech. He begins to have second thoughts when he finds out that Eddie's wife Connie is confined to a wheelchair and is being cheated on by her husband. He talks to the Breechs and agrees to help the two fake Eddie's death so that Derry can get paid for the hit and the two can start over in Mexico. Derry goes to the morgue and aquires a body. He puts Eddies wallet and wedding ring on the corpse and starts it on fire after putting it in a car. Derry gets paid, but is arrested by the police. The police found the car and believe Eddie is dead. Derry tells the police that Eddie is in Mexico. The police then bring Connie into the room. She accuses Derry of shooting Eddie the night before. Derry has been set up. Connie killed her husband and set up Derry to take the fall.

Fred Kruger, Al Norman, and Terry are three ex-convicts who are now gainfully employed as garage mechanics. One day, they decide to break into a payroll office. They are unable to open the safe, so the take it with them to the garage. Unfortunately, the safe contains, not only money, but also a lethal radioactive isotope which, if released, could poison the city.

Rusty Connors is a con man that has just been released from prison. He looks up the wife of his dead former cellmate, a robber and murderer, named Miles Krause. Before he was imprisoned, Krause stole a significant amount of money and killed his partner. The money and the body, however, never turned up. Connors talks to Krause's wife Helen and hopes that she knows where the money is. She, however, does not have a clue. Eventually, however, they are able to figure out that the money is stored in an abandoned boathouse that is now infested with rats. In the boathouse, they find the money and the dead and half-eaten body of Krause's partner. When Connors sees the money he is overcome with greed and tries to murder Helen. She manages to knock him out. When Connors awakens, he finds himself bound and gagged and being taunted by Helen. She gets up to leave with the money, but is tripped by Connors and is impaled on a hook. As she dies, the scent of her blood attracts the rats.