A federal tax agent goes undercover as a reporter and, working with a mobster's pretty bookkeeper, infiltrates a crime ring to catch the racketeer. When she agrees to testify, an informant exposes them and she's kidnapped.

A lawyer who is planning to run for District Attorney accidentally kills a gangster who owns the nightclub where the attorney's girlfriend is a singer. Although he manages to cover up his involvement in the crime, his girlfriend discovers the body and is subsequently charged with the murder.

A golddigging femme fatale leaves a trail of men behind her, rich and poor, alive and dead.

A crime reporter writes book to expose names and methods of the criminal leaders. He is held on a charge after refusing to explain how he got his information, but is released and helps to expose the syndicate.