London, 19th century. Moriarty is dead, but his dark legacy lives on. Welcome to 221B Baker Street for the thrilling adventure that will challenge the master sleuth as never before. When a mysterious lady moves to 221C, try to uncover the truth as you hide a terrible secret from your adopted daughter. While solving four seemingly unlinked cases, Holmes' story will culminate in his greatest-ever problem, involving his most beloved ones and his worst enemies in a deadly chase for the truth.