Moriarty’s true objective is the "fall" of Sherlock Holmes—a philosophical and public disgrace. He orchestrates several key events to turn the public and the police against the detective:
Jim Moriarty, portrayed by Andrew Scott , initiates the "crime of the century" by simultaneously breaking into the Tower of London, the Bank of England, and Pentonville Prison. Unlike a typical criminal, Moriarty does not seek financial gain; he allows himself to be caught to showcase a mythical "digital key" capable of bypassing any security. During his subsequent trial, Moriarty remains silent, yet he is acquitted after intimidating the jury—a victory that establishes his absolute control and sets the stage for his final game with Sherlock. The Systematic Deconstruction Watch Sherlock Holmes S02E03 1
: Moriarty creates the persona of "Richard Brook," an actor claiming Sherlock hired him to play a fictional villain so the detective could "solve" fake crimes for fame. Moriarty’s true objective is the "fall" of Sherlock
: Moriarty kidnaps the children of the US Ambassador. When Sherlock "deduces" their location with suspicious ease, it plants seeds of doubt within Scotland Yard. During his subsequent trial, Moriarty remains silent, yet
The Fall of the Reichenbach Hero: A Study of Sherlock S02E03
: By labeling Sherlock a fraud, Moriarty strips him of his allies, forcing the detective to go on the run with John Watson. The Rooftop Climax
The confrontation at St. Bartholomew’s Hospital serves as the episode's emotional and narrative peak. Moriarty gives Sherlock an ultimatum: commit suicide, or snipers will kill John Watson, Mrs. Hudson, and Detective Lestrade.