Dr. Clitterhouse (Edward G. Robinson) is a wealthy society doctor in New York City who decides to research the medical aspects of criminal behaviour directly by becoming one. He joins a gang of thieves headed by 'Rocks' Valentine (Humphrey Bogart). As "The Professor", he proceeds to wrest leadership of the gang away from Rocks, making Rocks extremely resentful.
|Edward G. Robinson||Claire Trevor|
|Humphrey Bogart||Allen Jenkins|
|Donald Crisp||Gale Page|
|Henry O'Neill||John Litel|