Overview
A convicted thief in Dartmoor prison hides the location of the stolen Bank of England printing plates inside three music boxes. When the innocent purchasers of the boxes start to be murdered, Holmes and Watson investigate.
Cast
- Basil Rathbone as Sherlock Holmes
- Nigel Bruce as Dr. John H. Watson
- Patricia Morison as Mrs. Hilda Courtney
- Frederick Worlock as Colonel Cavanaugh
- Harry Cording as Hamid
- Carl Harbord as Inspector Hopkins
- Holmes Herbert as Ebenezer Crabtree
- Edmund Breon as Julian 'Stinky' Emery
- Patricia Cameron as Evelyn Clifford
- Mary Gordon as Mrs. Hudson