Synopsis:
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.
| Directed by: | Nick Grindé |
|---|---|
| Written by: | Robert Hardy Andrews |
| Runtime: | 62 minutes |
| Tagline: | Beware! When Karloff stops the clock, your hour has come! |
Cast:
Boris Karloff
Dr. John Garth
Dr. John Garth
Evelyn Keyes
Martha Garth
Martha Garth
Bruce Bennett
Dr. Paul Ames
Dr. Paul Ames
Don Beddoe
Capt. McGraw
Capt. McGraw
Edward Van Sloan
Dr. Ralph Howard
Dr. Ralph Howard
Ben Taggart
Warden Thompson
Warden Thompson
IMDb
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