In 1799, in France, the Chouans, royalist Breton peasants, in a guerrilla, oppose the Republicans. An aristocrat, Marie de Verneuil, is sent by Joseph Fouché, the terrible minister of police to seduce and capture their leader, the Marquis de Montauran, known as "the Guy" (le Gars). She must be helped by a skilful, ambitious and unscrupulous policeman, Corentin.But Marie falls in love with her targ...