Cluedo sherlock the enigmatic series sherlock retells the tale of englands most celebrated detective and now sherlock holmes and john watsons adventures in 21st century london are the centrepiece for their own version of the classic game of cluedo who killed moriarty was it mrs hudson in the tower of london with the wrench or irene adler in 221b with a candlestick youll need all your wits about you to find out