Pérola Negra

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.

Elenco

Basil Rathbone Sherlock Holmes

Nigel Bruce Dr. John Watson

Dennis Hoey Inspector Lestrade

Evelyn Ankers Naomi Drake

Miles Mander Giles Conover

Ian Wolfe Amos Hodder

Charles Francis Francis Digby, curator

Holmes Herbert James Goodram, courier

Richard Aherne Museum Guard Bates

Mary Gordon Mrs. Hudson

Rondo Hatton The Hoxton Creeper

Harry Cording George Gelder (uncredited)