A psychologist takes on the daunting task of getting into the mind of prisoners. He must gain the trust and cooperation from a group of men who have no reason to help him and who might enjoy killing him.
Millard Mitchell
as James T. Connie
Gilbert Roland
as Punch Pinero
John Beal
as Dr. Wilson aka Doc
Marshall Thompson
as Blivens Scott
Alf Kjellin
as Clem Randall
Harry Morgan
as Dawson
Jay Adler
as Steve Kopac
Regis Toomey
as Dr. Gordon
Fay Roope
as Warden George Potter
Carleton Young
as Captain Haggarty
John Marley
as Knotty Johnson
Russ Conway
as Dr. Hughes
