Every summer, Rose spends her vacation with her parents in the same house by the lake. There, she meets her summer friend Windy. To Rose, Windy is the little sister she never had. But this summer, everything is different. Rose's parents can't stop arguing, and something has changed between Rose and Windy as well. Rose no longer finds much joy in the childish games of the past; instead, she watches with both fascination and disturbance the older teenagers who are beginning to have their first sexual experiences. A shimmering, light summer story about the time between childhood and growing up, filled with secrets, worries, and expectations.