While traveling alone in a train compartment, an elderly, wealthy, wheelchair-bound man (Cedric Hardwicke) is confronted by a younger man (David Niven), whom he had double-crossed over twenty years ago. The younger man, now bent on revenge, tells the elderly man that he intends to kill him when the train passes through an upcoming tunnel. A battle of wits ensues.

More interested in his career than in his duty as a physician, a noted doctor intentionally misdiagnoses a patient in an Asian city so he could get back to the U.S. and accept a major award. When his wife realizes that he abandoned a town needing his help to fight a Plague outbreak, she demands a divorce.

The conflict of a prison warden who discovers exculpatory evidence on the eve of an execution.

An actor named Paul is out on an evening stroll when he sees a young woman attempting to jump off a bridge. After a struggle, he discovers her name is Amy and she is homeless. Paul believes $5 could mean the difference between decency & despair so he pays for Amy to stay in a hotel for the night, agreeing to meet her the next day. Amy is nowhere to be found when Paul returns. He worries and begins the search for this mysterious woman.

Upset that his 25 years of service for the company are unappreciated, Henri treats himself to an expensive night on the town, on the company's dime. He then comes to his senses, distraught that his embezzlement will be discovered.

An undercover agent is dispatched to the anti-communist underground to search for an important contact. But when he's caught by the red Chinese, he's tortured in various ways for important information by a mysterious renegade white man who leads them known by the nom de guerre "Sampan Joe".

An aspiring actress has spent 20 years in Hollywood, not gaining fame as she had hoped, but as a stand-in for a well-known actress. Her ambition turns to despair, and her affection to bitterness.

A bank employee mails a letter to his boss confessing to stealing $7000 and includes the stocks he bought with the money. As he puts a gun to his head, he sees in the paper that the stocks' worth have gone through the roof. Now he wants to live and goes on a frantic chase to get the letter back from the post office before it gets delivered.

Ted attacks old enemy Walter in a fit of rage. Stunned at the realization that Walter is dead, he hears a woman on the phone who overheard their conversation. Ted needs to find this woman and keep her from telling the police anything.

Man invents a wife, then accused of murdering her.

A wealthy woman separates from her fortune-hunting husband. She rents a swanky New York penthouse in a building so new that she is the only one living there. When she awakens from a nap, she finds herself trapped in the apartment. Her estranged husband and his girlfriend are after her money and are hoping this will drive her crazy.

A teacher wanting to leave his unfulfilling job needs money to write the book he's dreamed of. A stranger enters and makes an unusual offer: $10,000 to take a physical for a dying man so he can get life insurance to take care of his widow when he passes on.

Industrialist Fleet Mason, a workaholic who doesn't realize how many lives he effects with his stressed-out working habits. When he thinks his loving wife has hung up on him in disgust, he re-evaluates his life by taking an imaginary bus trip to Meadville"". The trip is to nowhere and is full of psychological imagery. In a smoke shrouded bus terminal he meets all the people in his life as total strangers. When he meets his wife and realizes she doesn't recognize him, he becomes despondent. Only when his father appears and guides him to the exit does he realize how he must alter his life.

While her husband is laid up in a farm house with a broken leg, Nina sees a prowling burglar. She calls for help, but the hired hand that she calls for is the burglar - and he's also a murderer.

William encounters an old acquaintance, John Dwerrihouse, on a train with 75,000 pounds. Only later did William learn that Dwerrihouse had disappeared four months earlier after embezzling 75,000 pounds from the train company.

Alan moves to America when his wife dies, leaving his young daughter with her grandmother in Paris. When he returns after five years, his daughter has difficulty believing that he loves her.

Philip Benton is entertaining thoughts of moving on from his wife, who has been in a sanitarium for five years. Just as he is starting a new relationship with his secretary, he receives news that his wife is better and will be released.

A notorious criminal returns to his home town after 15 years away, and a young man wants to join him in notoriety and, probably, death at the hands of police.

Suave restaurateur-gambler Willie Dante rebuffs the attempt of racketeers to cash in on his gambling activities. He appears to change his mind, however, due to the influence of a beautiful woman.

Woman buys hearing aid and hears husband plot her murder.

Sea captain discovers a time bomb is planted on his ship.

A TV writer finds inspiration from a little girl travelling to Los Angeles.

Middleweight boxer finds his big bout has been fixed.

Past haunts politician running for Senator.

A reformed card sharp is recruited to unmask a suspected poker cheat among a group of wealthy gamblers. He finds it difficult to be impartial when the suspect enthusiastically befriends him.