In 1793, during the French Revolution, a young woman named Céline (Sophie Marceau), who was adopted by Count Savinien de Kerfadec, must choose between two men who have been raised like her brothers, Tarquin Larmor (Lambert Wilson) and Aurèle de Kerfadec (Stéphane Freiss), while they take opposite sides in the conflict. Tarquin, also adopted by the Count, is a partisan of the First French Republic and defends the new political system; Aurèle, the Count's natural son, supports Royalism. Both sons are in love with Céline. After the French Revolutionary Army decimates the Breton people, an insurgency of peasants, clergy, and aristocrats launches a guerrilla war called the Chouannerie.