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.
Rated NR | Length 62 minutes
Boris Karloff | Evelyn Keyes | Bruce Bennett | Don Beddoe | Edward Van Sloan | Ben Taggart | Pedro de Cordoba | Wright Kramer | Bertram Marburgh | Robert Fiske | Frank Richards | Kenneth MacDonald | Ernie Adams | Frederick Burton | Edward Earle | Richard Fiske | George McKay | John Tyrrell | Jack Cheatham | Charles Trowbridge | Bert Moorhouse | Sam Harris | Edmund Mortimer | Stanley Brown | Eddie Laughton | James T. Mack | Gohr Van Vleck