Before I Hang
Beware! When Karloff stops the clock, your hour has come!
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.
- Year: 1940
- Country: United States of America
- Genre: Crime, Horror, Science Fiction
- Studio: Columbia Pictures
- Keyword: experiment, mad scientist, murder, doctor, pianist, pardon, split personality, anti-aging, mercy killing, convicted murderer, youth serum
- Director: Nick Grindé
- Cast: Boris Karloff, Evelyn Keyes, Bruce Bennett, Don Beddoe, Edward Van Sloan, Ben Taggart