William James Moriarty doesn't monologue about revolution, he executes it one chess move at a time, and you watch Sherlock Holmes realize too late that he's been playing the wrong game. Part 2 yanks the mask off the British system and forces you to reckon with a villain who has better answers than anyone claiming to defend the status quo. The real sickness isn't the crimes Moriarty commits; it's that by episode thirteen, you understand why they were necessary.

William James Moriarty continues his campaign against the corrupt nobility of late 19th century Britain in this second cour of the psychological crime thriller. The feared Lord of Crime is really William working alongside his brothers Louis and Albert, striving to tear down a rotten system and build a fairer society. Detective Sherlock Holmes and his partner John H. Watson refuse to tolerate their crimes, and a battle of wits begins, though Sherlock does not realize how close his adversary is. Both sides become entangled with Irene Adler, a shrewd courtesan whose stolen classified documents endanger the British Crown. Sherlock's brother Mycroft hires Albert to recover the papers and silence her for good, while Irene schemes to win Sherlock over in hopes of escaping assassination.