Mystery Crime Thriller
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.
Directed by
Roy William Neill
Marjorie Bennett
Antique Shop Assistant (uncredited)
Ian Wolfe
Commissioner of Scotland Yard
Harry Cording
Hamid
William H. O'Brien
Detective at Murder Scene
Frederick Worlock
Colonel Cavanaugh
Edmund Breon
Julian 'Stinky' Emery
Frank Baker
Photographer
Frank Mills
Pub Patron (uncredited)
Mary Gordon
Mrs. Hudson
Patricia Morison
Mrs. Hilda Courtney
Leyland Hodgson
Tour Guide
Holmes Herbert
Ebenezer Crabtree
Nigel Bruce
Dr. John H. Watson
Carl Harbord
Inspector Hopkins
Charlie Hall
Cab Driver (uncredited)
Lillian Bronson
Minister's Wife (uncredited)
Cyril Delevanti
Convict at Dartmoor Prison (uncredited)
Olaf Hytten
Alfred - Auction House Bookkeeper (uncredited)
Jack Curtis
Pub Patron (uncredited)
Basil Rathbone
Sherlock Holmes
Sally Shepherd
Patricia Cameron
Evelyn Clifford
Wallace Scott
Joe Cisto
Bobby Hale
Pub Patron (uncredited)
Alexander Pollard
Crabtree's Assistant at Auction (uncredited)

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