In the 1950s, Louise left her husband when their children were still little. She was never heard from again. Her daughter Martine stayed in the small seaside town, where she became a doctor. Martine's daughter, Audrey, a thirty-year-old independent woman, returns to visit her parents. By chance, she finds a notebook that belonged to her grandmother, a diary that may at last explain her departure. Will it reveal the things left unsaid, that have altered the relationships within the heart of the family ever since? In it, will Audrey find answers to the questions that she is asking herself about her own future?

Finding that her loved ones are neglecting her, Juliette decides to pretend she has amnesia. Her plan works perfectly, and her children finally decide to take care of her. But when she decides to reveal the truth about her condition, her husband decides to move his mistress into their home. Juliette keeps her secret and goes to war against her husband...