
The famous Borgia Pearl, a valuable gem with a history of bringing murder and misfortune to its owner since the days of the Borgias, is brought to London, thanks in part to Sherlock Holmes. But before long the jewel is stolen, due to an error on Holmes' part, and shortly thereafter, a series of horrible murders begin, the murderer leaving his victims with their spines snapped and surrounded by a mass of smashed china.
Genres:

Basil Rathbone as Sherlock Holmes

Nigel Bruce as Dr. John Watson

Dennis Hoey as Inspector Lestrade

Evelyn Ankers as Naomi Drake

Miles Mander as Giles Conover

Ian Wolfe as Amos Hodder

Charles Francis as Francis Digby, curator

Holmes Herbert as James Goodram, courier

Richard Aherne as Museum Guard Bates

Mary Gordon as Mrs. Hudson

Rondo Hatton as The Hoxton Creeper

Harry Cording as George Gelder (uncredited)

Billy Bevan as Constable With Food Tray (uncredited)

Leyland Hodgson as Customs Officer (uncredited)

Eric Wilton as Chauffeur (uncredited)

Lillian Bronson as Maj. Harker's Housekeeper (uncredited)
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