Scientist Dr. Ernest Sovac (Boris Karloff) transfers the brain of a gangster into the body of an English professor injured in a car accident. When the academician takes on the characteristics of the hood and seeks revenge against a rival mobster (Bela Lugosi), Sovac faces the consequences of his well-intended but diabolical experiment. Stanley Ridges, Anne Nagel also star. 70 min. Standard; Soundtrack: English Dolby Digital mono.