Christine attends her sister’s wedding with her two partners, Alex and Stephane. As the trio adjusts to their newly formed polyamorous relationship, Christine learns she is unexpectedly pregnant. The news sparks conflicting reactions and exposes tensions about commitment and the future. Surrounded by judgmental relatives and controlling parents, the wedding becomes a pressure cooker where private doubts and fragile dynamics surface. Over the course of the celebration, the three must confront what love, family, and responsibility mean for them.