Dr. Janos Rukh discovers a certain type of radium that has almost magical healing properties. But the element has a dangerous side, too, and it has already started affecting Rukh. Consumed by paranoia, he begins to suspect that his wife is having an affair. Wild for revenge, Rukh hatches a deadly plot...using his own poisoned body as a weapon to kill.
as Dr. Janos Rukh
as Dr. Felix Benet
as Ronald Drake
as Diana Rukh
as Mother Rukh
as Lady Arabella Stevens
as Sir Francis Stevens
as Monsieur Noyer
as Professor Meiklejohn
as Chief of the Surete
as Mme. LeGrand (uncredited)
as Papa LaCosta (uncredited)
as Briggs (uncredited)
as Celeste (uncredited)
as Gendarme (uncredited)
