Black Friday 1940

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.

Cast:

Stanley Ridges
Prof. George Kingsley / Red Cannon 

Boris Karloff
Dr. Ernest Sovac 

Bela Lugosi
Eric Marnay 

Anne Nagel
Sunny Rogers 

Anne Gwynne
Jean Sovac 

Virginia Brissac
Mrs. Margaret Kingsley