France, 1830s. The calm life of a small provincial seaside town is disrupted when a famous writer — forty-year-old Mademoiselle des Touches, who publishes under a male pseudonym — settles nearby. A young aristocrat, Calyste du Guénic, falls in love with her…
However, Calyste’s feelings change when the writer’s younger friend — the Marquise Béatrix de Rochefide — comes to visit.