Sherlock Holmes investigates when young women around London turn up murdered, each with a finger severed. Scotland Yard suspects a madman, but Holmes believes the killings to be part of a diabolical plot.
as Sherlock Holmes
as Dr. John Watson
as Lydia Marlowe
as Professor James Moriarty
as Sir George Fenwick
as Inspector Gregson
as Maude Fenwick
as Dr. Onslow
as Dr. Simnell
as Corporal Williams
as Crandon
as Mrs. Hudson
as Waring the Mesmerist (uncredited)
as Shoelace Vendor Henchman (uncredited)
as Carter the Hypnotized Subject (uncredited)
as Bar Patron (seen in mirror) (uncredited)
as 4th Victim (uncredited)
as Commissioner of the CID (uncredited)
as Fenwick's Butler Norris (uncredited)
as Short-Tempered Officer Closing Window (uncredited)
as Member of Mesmer Club (uncredited)
as Pembrook House Waiter (uncredited)
