François (Jalil Lespert), a passionate sawmill manager in a small rural town, lives a comfortable life with his wife, Noémie (Mélanie Doutey). However, their marriage is strained by their long-standing inability to have a child. When François meets Patricia (Louise Bourgoin), the new partner of a local contractor, they launch into a intense, secret affair. When Patricia becomes pregnant, François's obsessive desire to become a father drives him to extreme lengths to keep the baby, blurring moral boundaries and threatening both families.