A brilliant but deranged neurosurgeon becomes obsessively fixated on a judge's daughter. With the help of an escaped criminal whose face he has surgically deformed, the mad man lures her, her father, and her fiancé to his isolated castle-like home, where he has created a torture chamber with the intent of torturing them for having 'tortured' him.
Boris Karloff
as Edmond Bateman
Bela Lugosi
as Dr. Richard Vollin
Lester Matthews
as Dr. Jerry Holden
Irene Ware
as Jean Thatcher
Samuel S. Hinds
as Judge Thatcher
Spencer Charters
as Col. Bertram Grant
Inez Courtney
as Mary Burns
Ian Wolfe
as Geoffrey 'Pinky' Burns
Maidel Turner
as Mrs. Grant
Raine Bennett
as Poe (uncredited)
Al Ferguson
as The Crook (uncredited)
Nina Golden
as Dancer (uncredited)
