Martine, a young artist from New York, arrives in Los Angeles to stay with a family while she completes her latest film project. Invited by Julie, a psychotherapist, Martine begins working with Julie's husband, Peter, a sound designer, who offers his expertise to help her finish the soundtrack for her film. The family includes their teenage daughter Kolt and a young son, both of whom are navigating their own struggles and relationships. As Martine becomes more embedded in their home, her presence starts to disrupt the household dynamics and triggers underlying tensions within the family.

Peter becomes increasingly drawn to Martine, complicating his relationship with Julie, while Julie herself is preoccupied with her own personal and professional challenges. Kolt also harbors feelings for her tutor, further adding to the web of emotional complexity within the household. The arrival of Martine serves as a catalyst, exposing and intensifying the existing fissures in their relationships, leading each character to confront their desires, boundaries, and responsibilities. The film explores themes of intimacy, temptation, and the ripple effects of one's actions on those around them.