Brandon and Philip are two young men who share a New York apartment. They consider themselves intellectually superior to their friend David Kentley and as a consequence decide to murder him. Together they strangle David with a rope and placing the body in an old chest, they proceed to hold a small party. The guests include David's father, his fiancée Janet and their old schoolteacher Rupert from whom they mistakenly took their ideas. As Brandon becomes increasingly more daring, Rupert begins to suspect.

Harry Caul is a devout Catholic and a lover of jazz music who plays his saxophone while listening to his jazz records. He is a San Francisco-based electronic surveillance expert who owns and operates his own small surveillance business. He is renowned within the profession as being the best, one who designs and constructs his own surveillance equipment. He is an intensely private and solitary man in both his personal and professional life, which especially irks Stan, his business associate who often feels shut out of what is happening with their work. This privacy, which includes not letting anyone into his apartment and always telephoning his clients from pay phones, is in part intended to control what happens around him. His and Stan's latest job, a difficult one, is to record the private discussion of a young male/female couple meeting in crowded and noisy Union Square. The arrangement with his client, known only to him as "the director", is to provide the audio recording of the ...

In London, wealthy Margot Mary Wendice had a brief love affair with the American writer Mark Halliday while her husband and professional tennis player Tony Wendice was on a tennis tour. Tony quits playing to dedicate to his wife and finds a regular job. She decides to give him a second chance for their marriage. When Mark arrives from America to visit the couple, Margot tells him that she had destroyed all his letters but one that was stolen. Subsequently she was blackmailed, but she had never retrieved the stolen letter. Tony arrives home, claims that he needs to work and asks Margot to go with Mark to the theater. Meanwhile Tony calls Captain Lesgate (aka Charles Alexander Swann who studied with him at college) and blackmails him to murder his wife, so that he can inherit her fortune. But there is no perfect crime, and things do not work as planned.

Travellers on a trans-European train are delayed for a night due to bad weather in a small fictional country called Mandrika. The passengers cram into the small village hotel where socialite Iris Henderson meets an old governess called Miss Froy. Shortly after the journey restarts, Miss Froy disappears.

Charlotte 'Charlie' Newton is bored with her quiet life at home with her parents and her younger sister. She wishes something exciting would happen and knows exactly what they need: a visit from her sophisticated and much traveled uncle Charlie Oakley, her mother's younger brother. Imagine her delight when, out of the blue, they receive a telegram from uncle Charlie announcing that he is coming to visit them for awhile. Charlie Oakley creates quite a stir and charms the ladies club as well as the bank president where his brother-in-law works. Young Charlie begins to notice some odd behavior on his part, such as cutting out a story in the local paper about a man who marries and then murders rich widows. When two strangers appear asking questions about him, she begins to imagine the worse about her dearly beloved uncle Charlie.

Milo Tindle and Andrew Wyke have something in common, Andrew's wife. In an attempt to find a way out of this without costing Andrew a fortune in alimony, he suggests Milo pretend to rob his house and let him claim the insurance on the stolen jewelry. The problem is that they don't really like each other and each cannot avoid the zinger on the other. The plot has many shifts in which the advantage shifts between Milo and Andrew.

A projectionist is studying to be a detective and is in love with a young lady. When he proposes her, his rival steals the chain watch of her father and incriminates him. The disappointed young projectionist returns to his job and while projecting the film, he dreams on being the detective of the story. Meanwhile, the girl finds the truth and acquits the guilty of the projectionist to her father.

Summoned by the dying General Sternwood, Philip Marlowe is asked to deal with several problems that are troubling his family. Marlowe finds that each problem centers about the disappearance of Sternwood's favoured employee who has left with a mobster's wife. Each of the problems becomes a cover for something else as Marlowe probes.

Bruno Anthony thinks he has the perfect plot to rid himself of his hated father and when he meets tennis player Guy Haines on a train, he thinks he's found the partner he needs to pull it off. His plan is relatively simple. Two strangers each agree to kill someone the other person wants disposed of. For example, Guy could kill his father and he could get rid of Guy's wife Miriam, freeing him to marry Anne Morton, the beautiful daughter of a U.S. Senator. Guy dismisses it all out of hand but but Bruno goes ahead with his half of the 'bargain' and disposes of Miriam. When Guy balks, Bruno makes it quite clear that he will plant evidence to implicate Guy in her murder if he doesn't get rid of his father. Guy had also made some unfortunate statements about Miriam after she had refused him a divorce. It all leads the police to believe Guy is responsible for the murder, forcing him to deal with Bruno's mad ravings.