Overview
A card cheat is threatened with exposure into joining a criminal enterprise that Sherlock Holmes believes is controlled by Professor Moriarity.
Cast
- Arthur Wontner as Sherlock Holmes
- Ian Fleming as Dr. John Watson
- Minnie Rayner as Mrs. Hudson
- Leslie Perrins as Ronald Adair
- Jane Welsh as Kathleen Adair
- Norman McKinnel as Prof. Robert Moriarty / Col. Henslowe
- William Fazan as Thomas Fisher
- Sydney King as Tony Rutherford
- Philip Hewland as Inspector Lestrade
- Gordon Begg as Marston, the butler