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.
Basil Rathbone
Nigel Bruce
Dennis Hoey
Evelyn Ankers
Miles Mander
Ian Wolfe
Charles Francis
Holmes Herbert
Richard Aherne
Mary Gordon
Rondo Hatton
Harry Cording
Billy Bevan
Leyland Hodgson
Eric Wilton
Lillian Bronson