In 21st century London, Alexandra Green, a young secretary with a knack for solving puzzles, often finds herself struggling under the shadow of the great detective, Sherlock Holmes. Her keen observational skills and sharp intellect frequently draw comparisons to Holmes himself, much to her frustration. Despite her best efforts to avoid the Holmes brothers - both the brilliant yet enigmatic Sherlock and the powerful, calculating Mycroft - fate seems to have other plans. When the mysterious disappearance of a young boy grips the city, Alexandra is reluctantly drawn into a complex investigation that forces her closer to the two men she's tried so hard to distance herself from. As the case unfolds, it becomes clear that Alexandra's unique talents may be the key to unraveling a conspiracy that stretches far beyond a simple missing person.