El regreso de Moriarty

At the Reichenbach Falls, the duel between Sherlock Holmes and Professor Moriarty is resolved in an unexpected way: Holmes dies and his nemesis survives. Before disappearing, the famous detective issues him a posthumous challenge: solve what would have been his next case. Under the name of Hugo Strahm, Moriarty arrives at the Alber family castle in Bavaria, where a poisoning and the theft of an ancestral sword push him to investigate alongside Clara Mendel, a medical student, whose intelligence and attentive gaze pose a constant risk to the identity that Strahm strives to keep hidden.