Having grappled with the machinations of a cult of Cthulhu in his last PC adventure (Sherlock Holmes: The Awakened), the worlds greatest detective is now ready to challenge Arsène Lupin, the gentleman thief. Lupin, a character invented by renowned French writer Maurice Leblanc, has thrilled millions of readers worldwide with his exploits, and will prove a perfect foil for Sherlock Holnmes. This Sherlock Holmes game sends players to 19th Century London where Arsene Lupin, a young French burglar with an impressive track record, has just challenged Scotland Yard and the most famous of detectives Sherlock Holmes. Lupin has announced that he plans to rob the capital of five objects of immense value over the course of five days. The objects are housed in highly prestigious locations such as the National Gallery, the British Museum, the Tower of London and even Buckingham Palace! Sherlock Holmes will have to muster all his courage and ingenuity to save England from terrible humiliation.