Beneath her eccentric appearance, Captain Marleau is a formidable detective. Her Sherlock Holmes deerstalker cap, her character, her unusual appearance, her humor, her unpredictable behavior--Captain Marleau is not your average gendarme. She never rushes an investigation; she becomes the investigation and relentlessly pursues the suspects.

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?