Stanley Maxton (Mickey Rooney) is a drummer in a night club band. He is in love with cigarette girl, Jane Tafford (Sally Forrest), but she is more interested in a mobster reputed to have influence in the movie industry.
Ruth Ellis lives with her ten-year old son Andy next to a night club. One night she meets David Blakely, and they start a love affair. However, for David with his upper-class background, it is impossible to uphold the relationship. He breaks up with her, something which makes Ellis, obsessed by him, very upset.
Police Lt. Leonard Diamond vies to bring a clever, well connected, and sadistic gangster to justice all the while obsessing over the gangster's girlfriend.
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.
Ghost is an ideological musician and leader of a jazz band who would rather play his blues in the park to the birds than compromise himself. His peripatetic performances lead him to cross paths with a singer, while his masculinity is thrown into question following a violent brawl.