University professor George Kingsley is struck by gangsters while crossing the street, leaving him with brain damage and one of the gangsters, Cannon, paralyzed. Kingsley's friend Dr. Sovac attends to both men, and when Cannon offers him a reward for aiding his recovery, Kovac transplants part of Cannon's brain into the dying Kingsley's skull, creating a dual personality.
Prof. George Kingsley / Red Cannon
Dr. Ernest Sovac
Eric Marnay
Sunny Rogers
Jean Sovac
Mrs. Margaret Kingsley
Frank Miller
William Kane
Bellhop
Bartender
Louis Devore
Chief of Police
Taxi Driver
Nurse
Student
Reporter Ernst Gives Notes To
Detective
Det. Farnow
Detective
Prison Doctor
Midtown Hotel Clerk
Cabbie
Student
Prison Chaplain
Dr. Warner
Cabbie
Det. Carpenter
Student
Student
Screenplay
Director