When beautiful music hall entertainers begin to disappear under mysterious circumstances, Inspector Tanner is summoned to investigate. His resourceful fiancee decides to help him by going undercover as a cabaret singer, and succeeds all too well, attracting the attention of the diabolical Dr. Orlof, who, with his blind henchman Morpho, is using the skin of slain women to restore the beauty of his disfigured sister, Melissa!