On a hot summer in the south of France, the story follows a young and attractive couple, Marc and Marianne, who are spending a few days relaxing in a luxurious villa by the pool. Everything seems idyllic until the unexpected arrival of Harry, a former lover of Marianne, unleashes a series of hidden tensions. Harry appears with his daughter Pénélope, and quickly an atmosphere of jealousy and rivalry is established.
Marc, a possessive and somewhat insecure man, feels his perfect world crumbling as he faces the charisma and carefree attitude of Harry, who seems to challenge his place in Marianne's life. The banal conversations and laughter by the pool turn into emotional confrontations, giving way to a dangerous game of seduction and deceit.
Little by little, that carefree atmosphere transforms into a psychological thriller where the darkest instincts emerge. The luxurious villa that should be a refuge becomes a stage for betrayals and revelations. With stunning visual style and a captivating soundtrack, the film explores the complexity of human relationships and how secrets can shape people's destinies. In this tense and electrifying narrative, passion, jealousy, and desperation intertwine, driving the plot towards an unexpected and devastating conclusion.