Sherlock Holmes wants to be the best and youngest unofficial detective in London. However, the only obstacle is Sherlock Holmes’s stupid brother threatening to tell their mother that she had her baby out of wedlock if Sherlock doesn’t find a partner. . Unbenkownst to Sherlock, the father is her archenemy and criminal mastermind James Moriarty. But Sherlock barely remembers how she conceived Henry during a drug-addled bender in the slums of Victorian London. Sherlock attempts to solve a mystery but finds herself facing her nemesis once again.