Boris Karloff
Dr. John Garth
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.
Release Date | 1940-09-17 |
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Runtime | 1h 2m |
Directors | Nick Grindé, Benjamin H. Kline, Morris Stoloff |
Producer | Wallace MacDonald |
Writers | Robert Hardy Andrews, Robert Hardy Andrews, Karl Brown |