Public radio presenter Sara (Binoche) and Jean (Lindon) are in love, and have been living together for a decade. When they first met, Sara was in a relationship with François (Grégoire Colin) while Jean, a pro rugby star, was married with a son. Their relationship has been relatively secure, even surviving a stint in prison by Jean for shady business dealings.

One day, seemingly out of the blue, François returns to Paris and contacts Jean, suggesting he come work for him; he’s starting an agency for sports stars and wants Jean’s expertise in identifying talent. When Sara first sees Francois again – in the distance, across a carpark – she’s overcome with emotion. Soon, things rapidly spiral out of control…