Black Friday

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