![Mary Gordon](http://image.tmdb.org/t/p/w92/u4QD0zsgBgXTi3At0e0ow8VdiEi.jpg)
A series of murders of women, each with their right forefinger posthumously severed, leads Sherlock Holmes and Dr. Watson to a mysterious, glamorous woman, a hypnotized assassin, and a blackmail scheme worthy of Professor Moriarty, who is its mastermind.