Train Mystery: On a cold winter night in 1934, the legendary Express No. 221, bound for Poland, becomes the scene of a mysterious murder. The death of the red-haired man leaves an unsolvable puzzle, and the various characters on the train, including a British detective, a red-haired woman, a butler, a mysterious old man, and a veteran who claims to have been wronged, all carry hidden secrets. As the train continues its journey, their lies gradually surface, revealing a complex web of the past. In this suspenseful night journey, determining the true culprit becomes an unpredictable challenge. This is a story filled with emotions, lies, and revenge, exploring the deep facets of human nature.