Before I Hang
Beware! When Karloff stops the clock, your hour has come!
9/17/1940
Imdb: tt0032245
Tmdb: 26923
Popularity: 7.077
Vote: 6.2/10 (33)

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.
Boris Karloff
Dr. John Garth
Evelyn Keyes
Martha Garth
Bruce Bennett
Dr. Paul Ames
Don Beddoe
Capt. McGraw
Edward Van Sloan
Dr. Ralph Howard
Ben Taggart
Warden Thompson
Pedro de Cordoba
Victor Sondini
Wright Kramer
George Wharton
Bertram Marburgh
Stephen Barclay
Robert Fiske
District Attorney
Frank Richards
Otto Kron - Convict
Kenneth MacDonald
Anson, Prison Guard
Ernie Adams
Sam - Hospital Prison Orderly
Frederick Burton
Governor Prentiss
Edward Earle
Dr. Nichols
Richard Fiske
Mandish
George McKay
Reardon
John Tyrrell
Sanders
Jack Cheatham
Patrolman Olson
Charles Trowbridge
Judge Braden
Bert Moorhouse
Cousel at Defense Table
Sam Harris
Courtroom Spectator
Edmund Mortimer
Courtroom Spectator
Stanley Brown
Prison Gate Guard
Eddie Laughton
Guard
James T. Mack
Butler
Gohr Van Vleck
Police Dispatcher
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Self/less
experiment
mad scientist
murder
doctor
pianist
pardon
split personality
anti-aging
mercy killing
convicted murderer
youth serum