The abandoned Balfour House, the owner of which was found dead five years earlier, comes back to life with the arrival of two suspicious sinister-looking tenants.
Movie tag line: "Lon Chaney in a great Scotland Yard mystery"
Production companies:
Character: Professor Edward C. Burke/The Man in the Beaver Hat
Character: Lucille Balfour
Character: Sir James Hamlin
Character: Williams, Balfour's Butler
Character: Arthur Hibbs
Character: Miss Smithson, the New Maid
Character: Luna, Bat Girl
Character: Roger Balfour
Character: Bat Girl's Assistant
Character: Real Estate Broker (uncredited)
Character: Gallagher (uncredited)