Ten-year-old Laure is not like most girls. She prefers football to dolls and sweaters to dresses. When Laure, her parents, and her little sister Jeanne move to a new neighborhood, family life remains much the same. However, everything changes when a local girl named Lisa mistakes Laure for a boy. Excited about this new identity, Laure decides to go by the name Michael, and thus begins a summer of long sunny afternoons, playground games, and first kisses. But as the school term quickly approaches and suspicions arise among friends and family, Laure must face an uncertain future.