
72 minutes
5/24/1946
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.

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

Ian Wolfe
as Commissioner of Scotland Yard

Leyland Hodgson
as Tour Guide

Marjorie Bennett
as Antique Shop Assistant (uncredited)

William H. O'Brien
as Detective at Murder Scene

Frank Baker
as Photographer

Sally Shepherd
Wallace Scott
as Joe Cisto

Jack Curtis
as Pub Patron (uncredited)

Cyril Delevanti
as Convict at Dartmoor Prison (uncredited)

Charlie Hall
as Cab Driver (uncredited)

Olaf Hytten
as Alfred - Auction House Bookkeeper (uncredited)

Frank Mills
as Pub Patron (uncredited)

Lillian Bronson
as Minister's Wife (uncredited)
Bobby Hale
as Pub Patron (uncredited)
Alexander Pollard
as Crabtree's Assistant at Auction (uncredited)