Returning by train to the French port of Le Havre, Jacques Lantier, a tormented railwayman, meets by chance the impulsive stationmaster Roubard and Séverine, his wife.
Rudolf, the only heir to Emperor Franz Josef of Austria-Hungary, is trapped in a loveless marriage to a Belgian princess. As he seeks to flee his stifling environment, he meets the beautiful Maria, and the two enter into a scandalous affair. Despite the interference of the Emperor, the couple refuse to give each other up.
