A Secret Kept

It began with a seaside vacation, a brother and sister recapturing their childhood. Antoine thought he had the perfect surprise for his sister M nie's birthday: a weekend by the sea at Noirmoutier Island, where they spent childhood summers. But it reminds M nie of something disturbing about their last island summer. She summons the courage to reveal what she knows while driving, but loses control of the car. Alone, waiting for news, Antoine reflects on his life. How did he end up here? And, more importantly, what was the secret that his sister wanted to tell him?