In a small, sleepy village in the Basque Country, a sculptor named Ane and her three children arrive at her mother's home for summer vacation surrounded by extended family and nosy neighbors. Ane's mother disapproves of her frayed marriage, career as an artist, and the way she parents her obstinate and mischievous children. Eight-year-old Aitor prefers to be called Coco as it becomes clear that the youth is exploring the concept of identity. As the child becomes more withdrawn, their only respite lies in Aunt Lourdes’ beekeeping farm. Among the peaceful humming of bees and Lourdes' open-minded guardianship, Coco slowly begins to confide in family and friends her discomfort in her body, eventually voicing a desire to be treated as a girl. As Coco explores her own developing identity over the summer, Ane and the rest of her family in turn must learn to accept the child as she is.