Having met on a train, a smooth-talking psychotic socialite shares his theory on how two complete strangers can get away with murder to an amateur tennis player — a theory he plans to test out.
When a car bomb explodes on the American side of the U.S./Mexico border, Mexican drug enforcement agent Miguel Vargas begins his investigation, along with American police captain Hank Quinlan. When Vargas begins to suspect that Quinlan and his shady partner, Menzies, are planting evidence to frame an innocent man, his investigations into their possible corruption quickly put himself and his new bride, Susie, in jeopardy.
A rich woman and a calculating insurance agent plot to kill her unsuspecting husband after he signs a double indemnity policy.
In postwar Vienna, Austria, Holly Martins, a writer of pulp Westerns, arrives penniless as a guest of his childhood chum Harry Lime, only to learn he has died. Martins develops a conspiracy theory after learning of a "third man" present at the time of Harry's death, running into interference from British officer Major Calloway, and falling head-over-heels for Harry's grief-stricken lover, Anna.
A self-assured businessman murders his employer, the husband of his mistress, which unintentionally provokes an ill-fated chain of events.
A retired San Francisco detective suffering from acrophobia investigates the strange activities of an old friend's wife, all the while becoming dangerously obsessed with her.
Richard Hanney has a rude awakening when a glamorous female spy falls into his bed - with a knife in her back. Having a bit of trouble explaining it all to Scotland Yard, he heads for the hills of Scotland to try to clear his name by locating the spy ring known as The 39 Steps.
In order to help bring Nazis to justice, U.S. government agent T.R. Devlin recruits Alicia Huberman, the American daughter of a convicted German war criminal, as a spy. As they begin to fall for one another, Alicia is instructed to win the affections of Alexander Sebastian, a Nazi hiding out in Brazil. When Sebastian becomes serious about his relationship with Alicia, the stakes get higher, and Devlin must watch her slip further undercover.
After a whirlwind romance in Mexico, a beautiful heiress marries a man she barely knows with hardly a second thought. She finds his New York home full of his strange relations, and macabre rooms that are replicas of famous murder sites. One locked room contains the secret to her husband's obsession, and the truth about what happened to his first wife.
A veteran homicide detective who has witnessed his socialite girlfriend kill her husband sees his inexperienced brother assigned to the case.
A young man who steals valuable Oriental objects for a crooked antique dealer is hunted down by the police after his latest Chinatown robbery turns violent.
A cop investigates the shooting of another policeman... that may have been involved in crooked activities.
A chance accident causes a nuclear physicist, who's selling top secret material to the Russians, to fall under FBI scrutiny and go on the run.
When a beautiful young woman suddenly offers inebriated Casey Morrow a lot of money for a quick and easy job, he doesn't ask too many questions. But when the girl's father is found murdered the following day and Morrow's coat is soaked with blood, he must unravel the mystery to clear his name. An intriguing story of deception, greed and immorality.
A plastic surgeon changes the face of a female convict to match that of the beautiful woman who broke his heart and left him. He marries the convict but trouble starts when his true love returns.
A methodical young man hired to clean up the messes murderers leave behind has his work cut out for him when he is contracted by a particularly strange serial killer.
After leaving the British Secret Service, David Somers (played by Trevor Howard) finds work cataloging butterflies at the country house of Nicholas and Jess Fenton. After the murder of a local gamekeeper, suspicion (wrongfully) falls on their niece, Sophie Malraux (Jean Simmons). Somers helps Sophie to escape arrest and they go on the run together. After a cross-country chase they arrive at a coastal city with the intention of leaving the country by ship. All's well that ends well after the true identity of the murderer is revealed.
A crime novelist receives a vital clue to the whereabouts of his long-missing fiancée.
Janet Spencer is driving down a country road when one of her tires blows out. This seemingly innocuous, everyday occurrence leads Linda into a labyrinth of murder, blackmail and intrigue.
A mystery woman is a murder suspect's only alibi for the night of his wife's death.