William James Moriarty, now known as the "Lord of Crime" to the public, and his allies are still working towards an ideal country by punishing the corrupt nobility. One day the government branch MI6, led by his brother Albert, is given the mission to eliminate a woman called Irene Adler for stealing confidential documents. In the meantime, Adler makes contact with Sherlock Holmes, who has become captivated by the mystery of the Lord of Crime.