Dr. Sovac transplants the brain of a gangster into his professor friend's body to save his life, but there is a side effect that causes a dangerous split personality.

Starring:

Boris Karloff, Bela Lugosi, Stanley Ridges, Anne Nagel, Anne Gwynne, Virginia Brissac, Edmund MacDonald, Paul Fix, Murray Alper, Jack Mulhall, Joe King, John Kelly, Robert Morgan

Genre:

Drama, Horror, Sci-Fi, Crime