When Sherlock Holmes recovered a compromising photograph and saved the reputation of the King of Bohemia he thought the case was closed. However, the attractive villainess, Irene Adler - now a respectable married woman - summoned Holmes a year after her marriage to further assist the King who was now being threatened by even more determined enemies.Holmes and Watson travel across the Continent to the isolated Kingdom of Bohemia, being imprisoned by friend and foe alike before any solution is in sight.