A man and wife are terrorized by Mad Scientist Dr. Callistratus who was executed but has returned to life with a heart transplant. Along with his crippled assistant Carl, the 'anemic' Mad Scientist, believed to be a vampire, conducts blood deficiency research on the inmates of a prison hospital for the criminally insane to sustain his return to life.
as Doctor Callistratus
as Dr. John Pierre
as Madeleine Duval
as Carl
as Kurt Urach
as Chief Guard Wetzler
as Chief Justice
as Monsieur Auron
as Drunken Doctor
as First Guard
as Second Guard
as Third Guard
as Housekeeper
as Tall Sneak Thief
as Small Sneak Thief
as Executioner
as Woman
as Man in Court (uncredited)
