King of the Underworld (1952)

London, 1929. Frank Webber, a very busy Scotland Yard detective, seems to be more interested in his work than in Alice White, his girlfriend. Feeling herself ignored, Alice agrees to go out with an elegant and well-mannered artist who invites her to visit his fancy apartment.

Fed up with her small-town marriage, a woman goes after the big time and gets mixed up with the mob.

In New York City, a bank robbery of $300,000 goes unsolved for a year, until some of the marked bills are found in a Los Angeles drugstore theft. Police detectives Cal Bruner and Jack Farnham investigate and are led from the drugstore to a nightclub, where singer Lilli is another recipient of a stolen bill. With Lilli's help, the partners track down the remaining money, but both Lilli and Jack are dismayed when Cal decides he wants to keep part of it.

A corrupt D.A. with governatorial ambitions is annoyed by an investigative reporter's criticism of his criminal activities and decides to frame the reporter for manslaughter in order to silence him.

An insurance representative is seduced by a dissatisfied housewife into a scheme of insurance fraud and murder that arouses the suspicion of his colleague, a claims investigator.

Ex-con turned private investigator Bradford Galt suspects someone is following him and maybe even trying to kill him. With the assistance of his spunky secretary, Kathleen Stewart, he dives deep into a mystery in search of answers.

A police detective falls for the bank robber's girlfriend he is supposed to be tailing.

Holly Parker, the wife of a wealthy diplomat, is compromised by the accidental death of a man who has been romantically pursuing her. She is forced by her mother-in-law to assume a new identity in order to save the reputation of her husband and infant son. She wanders the world, trying to forget her heartbreak with the aid of alcohol and unsavory men. Eventually returning to the city of her downfall, she murders a blackmailer who threatens to expose her past. Amazingly, Holly is represented at her murder trial by her now adult son, who has become a public defender. In the hope of protecting her family, she refuses to reveal her real name and is known to the court as "Madame X".

An attorney defends a hoodlum of murder, using the oppressiveness of the slums to appeal to the court.

Truck driver Mike Lambert is a down-and-out mining engineer searching for a job. When his rig breaks down in a small town, he happens upon a venomous seductress. When her boyfriend robs a bank, they intend to frame Lambert.