A couple have a peaceful existence in a small provincial town. He is a teacher and she runs an opticians practical. Their life is turned upside when Belle, a friend’s daughter who is lodging with them, is found dead in her room. The husband becomes the prime suspect as the only one at home at the time.

Guillaume Canet
as Pierre

Charlotte Gainsbourg
as Cléa

Patrick Descamps
as

Jérémie Covillault
as

Anne-Lise Heimburger
as

Fabio Zenoni
as

Salim Kéchiouche
as

Pauline Nyrls
as Aurélie

Aissatou Diallo Sagna
as

Kamel Laadaili
as Steve Jouanet