The tranquil life in the French countryside is shattered for Vianne Mauriac when her husband, Antoine, is called to fight in World War II. Left to navigate the challenges of a Nazi-occupied France, Vianne faces harrowing decisions that test her will and courage, especially when her home is requisitioned by a German officer. Meanwhile, her younger sister, Isabelle, inflamed by the passions and rebellions of youth, encounters a fervent resistance fighter. Her love quickly turns to betrayal, propelling her into the heart of the French Resistance. Throughout the tumult of war, the sisters grapple with the agonies of choice, love, and survival amidst the brutality of conflict. Their parallel paths weave a tale of feminine strength and the unyielding resilience against the backdrop of one of history's darkest hours.