After two gang-related killings in "Center City," a suspect (who was framed) is arrested, released on bail...and murdered. Inspector Briggs of the FBI recruits a young agent, Gene Cordell, to go undercover in the shadowy Skid Row area (alias George Manly) as a potential victim of the same racket. Soon, Gene meets Alec Stiles, neurotic mastermind who's "building an organization along scientific lines." Stiles recruits Cordell, whose job becomes a lot more dangerous.
Mark Stevens
as Gene Cordell / George Manly
Richard Widmark
as Alec Stiles
Lloyd Nolan
as Inspector George A. Briggs
Barbara Lawrence
as Judy Stiles
Ed Begley
as Chief Bernard Harmatz
Donald Buka
as Shivvy
Joseph Pevney
as Matty
John McIntire
as Cy Gordon
Walter Greaza
as Lt. Paul Staller
Howard Smith
as Ralph Demory
Larry Anzalone
as Sparring Partner (Uncredited)
George Barrows
as Bouncer at Gym (Uncredited)
