Pédret, Aram Stephan, a Spanish immigrant, arrives in the southwest French countryside at the turn of the century. He finds work as a blacksmith and marries Augustine, Françoise Lebrun, the daughter of the village baker. Over time, his humble forge grows into a full-fledged foundry, and by 1936 it is managed by his three sons: Hector, Michel Auclair; Prosper, Claude Mann; and Pierre, Pierre Baillot. Augustine, now a bourgeois matriarch, helps shape the family’s status as the business and social life of the town crystalizes around their dynastic ambitions.
When Augustine discovers that her son Hector is having an affair with Berthe, a lowly seamstress, she sets out to ruin Berthe’s livelihood and push her out of town—calmly resorting to bribes and scheming to achieve her goal. Berthe, Jeanne Moreau, is no passive bystander, and the situation forces the elder Pédret to reckon with the gap between his sons’ rattled spirits and Berthe’s blunt, practical sense. He ultimately arranges for Berthe and Hector to be married, a move that unsettles the old social order and plants the seeds for a new dynamic within the family.
As years pass, Berthe proves her resilience beyond the domestic sphere. In the war, she becomes a heroine of the Resistance, earning a formidable ledger of respect for her courage and resourcefulness. When a strike threatens the foundry, she navigates the conflict by listening to the workers and agreeing to their demands, thereby preserving the operation and its people. Her influence grows, and she takes over a central role in management, becoming the new matriarch who commands both respect and fear. This shift highlights a contrast with Regina, Marie-France Pisier, Berthe’s sister-in-law, who is dark, striking, and married to Prosper; Regina’s restless spirit underscores the tensions within provincial life and the limits of traditional roles.
Regina’s own arc unfolds in sharp, dramatic turns: she abandons provincial life by running off with an American soldier, a choice that signals how far the family's fortunes—especially Berthe’s—might drift from their original ambitions. Eventually Regina returns, not with mere desire but with an American industrialist lover, Pierre Gautard, which rekindles negotiation and bargaining at the heart of the family’s finances.
Through these entwined lives, the film traces how Berthe comes to control the family’s fortunes even as the 1950s bring new economic pressures. Facing mounting challenges, she leans on Regina’s unexpected return and the aid of the American-connected circle Regina has rejoined, hoping for a form of liberation that would stabilize the family’s future. Regina’s potential alliance with Berthe—offered in exchange for her own freedom—becomes a pivotal moment, illustrating how power, money, and loyalty shift under the pressures of war, modernization, and changing social mores.
In the end, the story remains a portrait of resilience and adaptation: a man’s lineage, a woman’s reinvention of strength, and a provincial town negotiating the tides of history, where old hierarchies are tested, and new paths are carved by those who refuse to be written off.