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.

Directed by: Anatole Litvak
Written by: John Huston & John Wexley
Runtime: 87 minutes
Tagline: ... a thunderbolt of thrills and intrigue!
Cast:
Edward G. Robinson Edward G. Robinson
Dr. T.S. Clitterhouse 
Claire Trevor Claire Trevor
Jo Keller 
Humphrey Bogart Humphrey Bogart
'Rocks' Valentine 
Allen Jenkins Allen Jenkins
Okay 
Donald Crisp Donald Crisp
Police Inspector Lewis Lane 
Gale Page Gale Page
Nurse Randolph