The world’s greatest detective has gone into isolation to escape his tortured past. As he descends into a self-medicated despair, his inner demons consume him. Sherlock finds himself unable to solve the most important case of his life, and the guilt is too much to bear. At his lowest point, an unexpected visitor arrives who forces him to take up the mantle of Sherlock Holmes once again. Sherlock breaks the chains of his haunting past to step up to the challenge and faces his most evil villains yet!