Dr. Mabuse has been locked away for years in an insane asylum. Suddenly crimes start occurring and no one knows the culprit. A detective goes to visit the Doctor to…

A strangler is loose on a British estate, and he not only strangles his victims but brands an “M” onto their foreheads before he decapitates them.

A group of hooded vigilantes hang wrong-doers with a rope stolen from Scotland Yard’s Black Museum.