In France, at the court of Louis XIV, the Marquise de Sévigné wants to raise her daughter in her own image: a brilliant and independent woman driven by the arts and literature. But, as soon as her daughter marries, she cuts ties with her mother and takes pleasure in the activities of a housewife. Since their separation, they miss each other and start writing ardent letters. From this wreck, the most famous letters of French literature will be born...