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Suspense! Thrills! Adventure!
In the midst of World War II, Sherlock Holmes rescues the Swiss inventor of a new bomb-sight from the Gestapo and brings him to England, where he quickly falls into the clutches of the evil Professor Moriarty.
Roy William Neill
Sherlock Holmes
Doctor Watson
Professor Moriarty
Dr. Franz Tobel
Charlotte Eberli
Inspector Lestrade
Sir Reginald
Mrs. Hudson
Jack Brady (uncredited)
Peg Leg (uncredited)
Mueller (uncredited)
Professor Frederic Hoffner (uncredited)
