"An ex-con is inspired to go undercover and "finger" the mob after finding out his sister is hooked on illegal drugs."
Frank Lovejoy
as Casey Martin
Forrest Tucker
as Dutch Becker
Peggie Castle
as Gladys Baker
Timothy Carey
as Lou Terpe
John Cliff
as Johnny Cooper
William F. Leicester
as Jim Rogers
Glen Gordon
as Carlos Armor
John Close
as 'Big' Walters
Hugh Sanders
as Mr. Burns
Evelyn Eaton
as Lucille Martin
Charles Maxwell
as Fred Amory
Joi Lansing
as Blonde in bar
Lisa Montell
as Mary Smith (uncredited)
Dorothy Green
as Candy
Maurice Wright
Editor
Harold D. Schuster
Director
William A. Sickner
Director of Photography
Warren Douglas
Writer
Lindsley Parsons
Producer
Paul Dunlap
Original Music Composer
Norris Lipsius
Story
John Lardner