8-year-old Nelly has just lost her beloved grandmother and is helping her parents clean out her mother’s childhood home. She explores the house and the surrounding woods where her mom, Marion, used to play in the treehouse Nelly's heard so much about. One day her mother abruptly leaves. That’s when Nelly meets a girl her own age in the woods building a treehouse. Her name is Marion.

Céline Sciamma (PORTRAIT OF A LADY ON FIRE) returns to the festival with a poetic, intimate and moving film about friendship, memory, grief and mother-daughter relationships.