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.

After getting out of prison, Johnny Clay masterminds a complex race-track heist, but his scheme is complicated by the intervention of the wife of a teller (George Peatty) in on the scheme, the boyfriend of the wife, airport regulations, and a small dog.

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.

Sometime in the future, the city of Metropolis is home to a Utopian society where its wealthy residents live a carefree life. One of those is Freder Fredersen. One day, he spots a beautiful woman with a group of children, she and the children who quickly disappear. Trying to follow her, he, oblivious to such, is horrified to find an underground world of workers, apparently who run the machinery which keeps the above ground Utopian world functioning. One of the few people above ground who knows about the world below is Freder's father, Joh Fredersen, who is the founder and master of Metropolis. Freder learns that the woman is Maria, who espouses the need to join the "hands" - the workers - to the "head" - those in power above - by a mediator or the "heart". Freder wants to help the plight of the workers in the want for a better life. But when Joh learns of what Maria is espousing and that Freder is joining their cause...

In 1938, Walter Neff, an experienced salesman of the Pacific All Risk Insurance Co., meets the seductive wife of one of his clients, Phyllis Dietrichson, and they have an affair. Phyllis proposes to kill her husband to receive the proceeds of an accident insurance policy and Walter devises a scheme to receive twice the amount based on a double indemnity clause. When Mr. Dietrichson is found dead on a train-track, the police accept the determination of accidental death. However, the insurance analyst and Walter's best friend Barton Keyes does not buy the story and suspects that Phyllis has murdered her husband with the help of another man.