A telephone repairman in Los Angeles uses his knowledge of electronics to help a bookie set up a betting operation. After the bookie is murdered, the greedy technician takes over his business. He ruthlessly climbs his way to the top of the local crime syndicate, but then gangsters from a big East Coast mob show up wanting a piece of his action.
Edmond O'Brien
as Mal Granger
Joanne Dru
as Gail Mason
Otto Kruger
as Carl Stephans
Barry Kelley
as Vince Walters
Dorothy Patrick
as Trudy Maxwell
Don Porter
as Larry Mason
Howard St. John
as Lieutenant Pete Wright
Robert Osterloh
as Gizzi
Sammy White
as Chippie Evans
Fred Aldrich
as Peterson - Carl's Chauffeur (uncredited)
Phillip Barnes
as Undetermined Secondary Role (uncredited)
Jay Barney
as Detective Carter (uncredited)
