Arthur Conan Doyle

Yellow fog is swirling through the streets of London, and Sherlock Holmes himself is sitting in a cocaine-induced haze until the arrival of a distressed and beautiful young lady forces the great detective into action. Each year following the strange disappearance of her father, Miss Morstan has received a present of a rare and lustrous pearl. Now, on the day she is summoned to meet her anonymous benefactor, she consults Holmes and Watson.

Sherlock Holmes and Dr. Watson respond to a coded warning when they arrived at a fortressed country house of the reclusive Jack Douglas, too late to prevent a tragic death. They must follow a series of clues in search of a murderer and establish a connection between the corpse with a missing face and a ruthless secret society which once terrorized a desolate region of the United States.