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

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