Manon, a shy and introverted 16-year-old girl is forced to live with her insufferable grandmother Yvonne, a former feminist activist who has Alzheimer’s. The situation becomes even more difficult when Yvonne, confused, starts mistaking Manon for her own daughter. Contrary to expectations, Manon plays along with Yvonne, and starts pretending to be her mother, someone she’s barely known. In the end, she discovers the real history of the women in her family, and learns to become a woman herself.