简介 After a four month absence, Sherlock Holmes returns to Baker Street following several attempts on his life. Holmes had been away on an important assignment for the French government - recovering the Mona Lisa that had bee stolen from the Louvre. He was successful in his task and appropriately rewarded by the French but he raised the ire of the crime's perpetrator - Professor Moriarty. On the morning of his return, the Professor visited Holmes in his flat and warned him to cease or he would have no choice but to take extreme measures. With several attempts on his life having already taken ...