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.

• Universal Pictures
• Boris Karloff
• Bela Lugosi
• Lester Matthews
• Irene Ware
• Samuel S. Hinds
• Spencer Charters
• Inez Courtney
• Ian Wolfe