第 1 集: 威廉·莫里亞蒂調查貴族阿格爾頓爵士，指控其在19世紀末倫敦謀殺七名男童。

William James Moriarty, future nemesis of Sherlock Holmes, lives in late 19th century London. William learns of a serial killer who has murdered seven young boys and immediately deduces from their fathers' occupations the killer is a nobleman who encountered the boys at their fathers' shops, except for one boy who was homeless. After interviewing the homeless boy's friend, William deduces the killer must have first seen the boy from a window of the Gastros fine dining club. William's brother, Albert, uses his connections to get William inside the club. William is immediately suspicious of Lord Argleton, a founding member. William notices Argleton's attire was bought from the boys' fathers. After hinting to Argleton he knows about his obsession with young boys, Argleton sends a thug after William, who is easily taken out by William's other brother, Louis. Later, William provides a restrained Argleton to his client, a father of one of the boys, for revenge, revealing that William secretly works as a crime consultant, alongside his brothers Albert and Louis, to help their clients commit crimes. With the police and general public unaware of Argleton's death and disappearance, William declares it another perfect crime. (Source: Wikipedia)

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