In a London teeming with average human beings, there are, lurking in the shadows, another species of human; one that lives in secrecy and fear, prey to the human predators who stalk them for pleasure. Only only one man stands between them and extinction. Meet Sherlock Holmes, Consulting Detective, who, alongside his faithful companion and flatmate, Dr. John H. Watson, continues to fight crime in his own inimitable way, but this time, with a twist. Predator and prey, hunter and hunted, stalker and the stalked...all come together in an adventure through the foreboding streets of a London, a place few ever see in their lifetime. Sherlock Holmes and Dr. Watson must find out who is killing the homeless of the city and why they have been targeted. The fate of his people lies in his hands…