In the late 19th century, the British Empire has become a global power. Due to the strict class stratification, the average citizen has little chance of successfully rising up to the top, where the despicable nobility rules over them all. After Albert's family adopts two orphans, William and Louis, he learns that they share a common hatred for the corrupt British nobility with William calling himself a "crime consultant". They scheme together to kill Albert's cruel blood related brother, also named William, burn down the family estate, and then start a new life together aimed at using illegal means to destroy the class system which had plagued the country for centuries. While enacting an elaborate scheme to murder a noble who was hunting commoners, William James Moriarty encounters Sherlock Holmes, who is able to deduce a third party was involved in the murder. This piques William's interest in Sherlock and leads him to frame Sherlock for murdering a count to test his abilities.