"Beware! When Karloff stops the clock, your hour has come!"
Dr. John Garth conducting an innovative medical experiment aimed at prolonging life and combating aging. The experiment takes an unexpected turn, placing the doctor in a confrontation with the ethics of his work and the consequences of his research.
Dr. John Garth
Martha Garth
Dr. Paul Ames
Capt. McGraw
Dr. Ralph Howard
Warden Thompson
Victor Sondini
George Wharton
Stephen Barclay
District Attorney
Otto Kron - Convict
Anson, Prison Guard
Sam - Hospital Prison Orderly
Governor Prentiss
Dr. Nichols
Mandish
Reardon
Sanders
Patrolman Olson
Judge Braden
Cousel at Defense Table
Courtroom Spectator
Courtroom Spectator
Prison Gate Guard
Guard
Butler
Police Dispatcher
