Sherlock Holmes

A boy disappears without a trace from a moving train, leaving the passengers baffled and the carriage empty of any clues. Holmes' investigation follows the faint leads and ultimately brings him to a travelling circus, where the mystery may be resolved.

The Case of the Night Train Riddle is an episode of a programme that falls within the mystery genre. It centres on the famed detective Sherlock Holmes and presents an intriguing self‑contained story that can be watched without needing prior knowledge of other episodes. The title hints at the central puzzle that drives the plot. The story opens with a young boy suddenly vanishing from a moving train, leaving no trace behind. His disappearance is presented as a baffling incident that catches the public’s attention and prompts an immediate call for Holmes’s expertise. The lack of clues on the train heightens the mystery from the start. Holmes takes up the case, applying his characteristic analytical methods to piece together whatever evidence might exist. He follows the scant leads that emerge, each step drawing him further away from the railway and toward an unexpected destination. His pursuit remains carefully methodical, even as the trail grows increasingly obscure. Eventually his investigation leads him to a travelling circus, where the missing boy’s fate becomes entwined with the performers and their itinerant world. The circus setting provides a stark contrast to the railway environment, and Holmes ultimately must navigate this new arena to uncover what really happened to the child.