STORY
A physician on death row for a mercy killing is allowed to experiment on a serum using a criminals' blood, but secretly tests it on himself. He gets a pardon, but finds out he's become a Jekyll-&-Hyde.
CAST & CREW
- Boris Karloff
- Evelyn Keyes
- Bruce Bennett
- Don Beddoe
- Edward Van Sloan
Cast
- Nick Grindé
Director
INFORMATION
- Columbia Pictures
Production Companies
- United States of America
Production Countries
LANGUAGES
- English
