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.
At the end of the 19th century, during a ball in Joinville, on the outskirts of Paris, Georges, a former delinquent working as a carpenter, meets Marie, a young woman connected to a criminal gang.
A weekend at a marquis’ country château lays bare some ugly truths about a group of haut bourgeois acquaintances.
