When a young aristocrat, Lord Saltire, mysteriously vanishes from his prestigious boarding school, Sherlock Holmes is called in to investigate. As he delves deeper into the case, Holmes uncovers a web of deception involving a faked kidnapping, a murder, and a scandal meant to protect a powerful family's secrets. With his usual brilliance, Holmes unravels the truth behind the boy's disappearance — and delivers justice, despite high societal pressures.