In a luxurious train traversing Europe on a snowy night, a group of passengers from diverse nationalities embarks on a journey that will soon take an unexpected turn. Among them are a shrewd retired detective, a mysterious woman of aristocratic bearing, an elderly billionaire, and several other characters whose stories seem to intertwine in the tense atmosphere of the trip.
As the train moves forward, superficial conversations give way to dark secrets and motives for distrust. One of the passengers, drowsy, finds her travel companion murdered in her compartment, and panic ensues among the travelers. The relationships between the characters shift dramatically, laying bare jealousy and rivalries as they attempt to uncover who the culprit is.
Amid the chaos, the former detective takes control of the situation, using his wit and deductive skills to interrogate the passengers and unravel a complicated web of lies. With each revelation, the plot becomes more intricate, leaving everyone in a state of anxiety and suspicion.
As time progresses and the snow covers the tracks, the truth about the traveler’s death unfolds in a series of unexpected twists that keep the audience on the edge of their seats, raising questions about justice, revenge, and the complexity of human nature in a claustrophobic setting filled with mysteries to solve.