Isa is an English girl living in Paris. Virgile is a lifelong Parisian. Though once close, the two have grown distant. They used to play music together, and reunite one Sunday at Isa's apartment to try again. But Isa is moving back home soon, and has become increasingly uncomfortable with Virgile's presence. Their relationship is in flux, half-broken, indefinite. Brighton consists of the progression of its final moments.