A wealthy society doctor decides to research the medical aspects of criminal behaviour by becoming one himself. He joins a gang of thieves and proceeds to wrest leadership of the gang away from it's extremely resentful leader.
| Production | Gilbert Miller | Producer |
| Production | Anatole Litvak | Producer |
| Production | Jack L. Warner | Executive Producer |
| Editing | Warren Low | Editor |
| Directing | Anatole Litvak | Director |
| Writing | Barré Lyndon | Theatre Play |
| Production | Hal B. Wallis | Executive Producer |
| Production | Robert Lord | Producer |
| Writing | John Wexley | Screenplay |
| Writing | John Huston | Screenplay |
| Camera | Tony Gaudio | Director of Photography |
| Art | Carl Jules Weyl | Art Direction |
| Sound | Max Steiner | Original Music Composer |
| Costume & Make-Up | Milo Anderson | Wardrobe Supervisor |
