Holmes takes a vacation and visits his old friend Sir Henry Baskerville. His vacation ends when he suddenly finds himself in the middle of a double-murder mystery. Now he's got to find Professor Moriarty and the horse Silver Blaze before the great cup final horse race.
Arthur Wontner
as Sherlock Holmes
Ian Fleming
as Dr. John Watson
John Turnbull
as Inspector Lestrade
Lawrence Grossmith
as Sir Henry Baskerville
Robert Horton
as Colonel Ross
Lyn Harding
as Professor Moriarty
Arthur Macrae
as Jack Trevor
Judy Gunn
as Diana Baskerville
Minnie Rayner
as Mrs. Hudson
