In a small town in France, summer transforms into a whirlwind of emotions for two teenage sisters, Anaïs and Élodie. Anaïs, the younger of the two, is an intrepid and curious girl who lives with a mix of admiration and resentment towards the beauty and sensuality radiating from her older sister, Élodie. As family tensions and secrets begin to surface, a getaway to the coast becomes the perfect setting for the discovery of sexuality and a series of decisions that will change their lives forever.
Élodie, despite her charisma and attractiveness, faces her own questions and vulnerabilities, leading her to become involved in complicated relationships that distance her from her family and her younger sister. On the other hand, Anaïs desperately seeks to understand her own identity and often feels overshadowed by Élodie's dazzling figure. The complexity of their relationship intensifies when a mysterious boy enters their lives, unleashing jealousy and repressed desires.
As the vacation progresses, both sisters must confront their own demons, family expectations, and what it truly means to be young women in a world full of temptations. The story is a visceral journey through adolescence, complicity, and sisterly love, exploring the intricacies of growing up and the struggle for authenticity amid emotional chaos.