Sherlock is a legendary detective, possessing a brilliant mind and a brilliant sense of crime. He has ingenuity in concealment, skill in uncovering secrets, and eloquence and wit in conversation, and his brave friend Watson is a unique doctor, witty and intelligent. They go on breathtaking adventures, solving the most difficult and complex cases. Puzzles. They return again to run after the unknown, digging into the past to reveal what is hidden, looking for a hidden evil, and their path is someone who is led by a murdered person. They are manipulated by a ruthless and powerful killer. Will they succeed or will they fall into the trap?