In this gothic tale set in 1880 London, a Baron’s face is frozen into a permanently grotesque smile after digging up his father’s grave to retrieve a winning lottery ticket accidently left in his pocket. The gimmick allowed audiences to vote in a “Punishment Poll” during the climax of the film where Castle himself appears on screen to explain to the audience their options. Each member of the audience was given a card with a glow-in-the-dark thumb they could hold either up or down to decide if Mr. Sardonicus would be cured or die at the end of the film. Supposedly, no audience ever offered mercy and the villain was always punished. Mr. Sardonicus has a running time of approximately 89 minutes and is not rated.