The Alfred Hitchcock Hour

Duke Marsden is an inveterate gambler who's about to lose his wife because of his habit. She gives him an ultimatum to either give up poker or else she's gone. He agrees, but there's one last thing he has to do first.

At a college campus, two young girls are killed while strolling through a nearby forest. Suspicion falls on a chemistry professor and an intense and brooding music professor named Edwin Volck. Harold, a psychology professor, convinces his fiancee Daphne to act as bait to help trap the killer. The trap succeeds and Volck is revealed as the killer. Harold, however, becomes worried. He believes that the killers bloodlust may have inspired other less obvious psychos on campus. Daphne realizes that Harold has been speculating about himself when he suddenly attacks her. She is rescued by the chemistry professor. The chemistry professor had been watching Harold's behavior since the beginning believing that he was a possible psychopath.

Jim Mallory is a forest ranger who along with his wife Linda, have adopted a girl named Anne. The couple have never told Anne that her parents died in a bizarre murder-suicide for fear that the news might disturb her. A blackmailer contacts Jim and demands money. He says that he will tell Anne the secret of her past if Jim doesn't pay up. Jim agrees to pay, but informs the police. The blackmailers figure out that something is up and change the site of the money drop. Later the blackmailers get into an argument and one of them is killed. When the police find the body, they suspect Jim Mallory. Jim manages to catch the blackmailer to clear his name, but he doesn't get to him in time to stop her from telling Anne the secret about her parents. Anne is troubled by the news, but manages to take it in stride. She tells the Mallorys that she loves them and has always considered them her real parents.

There are five witnesses for a hit-and-run accident at an intersection who all say the car did not stop at the stop sign, but are they all wrong?

Warren Barrow writes mystery novels under a pseudonymn. He sends his publisher a series of tape recordings that appear to detail either the plot of his next mystery novel or the plan for a murder he is actually going to commit. Using his own name on the tapes, Barrow describes how he renewed a friendship with a very attractive girl named Janet West. Janey, however, is married and wants someone to kill her wealthy husband. Blinded by passion, Barrow agrees to commit murder. At the last minute, however, he gets cold feet and later, out of guilt, decides to kill Janet. The tape ends, however. The publisher and another writer, Tom Keller, become convinced that Barrow is planning murder. The publisher calls the police while Keller heads for Janet's apartment. At the apartment, Keller discovers Janet dead and Barrow holding the murder weapon. Barrow is taken to the police station where he provides an ending to his novel and a complete confession, all on tape.