In the summer of 1939, 13-year-old Marie goes with her parents to visit her grandmother in a small town near Avignon. Although rumors of war reach the countryside, it's an idyllic place, and Marie's parents are constantly making love. Surrounded by sexual frankness, Marie fancies herself a woman and develops a crush on Alexander, the town's young Jewish doctor, and is despondent when he treats her like a child. When her father abruptly leaves for a few weeks to help with a relative's harvest, her mother and the doctor disappear into the woods for hours at a time. Marie tries to spy on them. When Papa returns, what will the family and the doctor do?