A series of murders of women, each with their right forefinger posthumously severed, leads Sherlock Holmes and Dr. Watson to a society of hypnotists and a mysterious, glamorous woman. The case takes an intriguing turn when the fiendish Dr. Moriarty - last seen swinging from the hangman's noose - appears to be involved.
Basil Rathbone, Nigel Bruce, Hillary Brooke, Henry Daniell, Paul Cavanagh, Matthew Boulton, Eve Amber, Frederick Worlock, Coulter Irwin, Sally Shepherd, Mary Gordon, Billy Bevan, John Burton, Tony Ellis, Bess Flowers, Kay Harding, Alec Harford, Olaf Hytten, Boyd Irwin, Eric Mayne, William H. O'Brien, Percival Vivian
