Nelly has just lost her grandmother and is helping her parents clean out her mother's childhood home. She explores the house and the surrounding woods until one day she meets a girl her same age building a treehouse.

Céline Sciamma (b. 1978) studied French Literature before enrolling in the renowned film school La Fémis. Ever since her debut film Naissances des pieuvres/Water Lilies (2004) she continues to create iconic films that center around sexuality, feminism and the close study of her female characters. In 2019, her film Portrait of a Lady on Fire won the award for Best Script and the Queer Palm at the Cannes Film Festival.