Patrick is a tenacious lawyer specializing in environmental law. France is a schoolteacher who becomes an activist after her husband develops cancer from exposure to a pesticide. Mathias is an ambitious lobbyist for a chemical corporation.

France, sports teacher by day, worker by night and activist; Patrick, obscure and lonely Parisian lawyer specializing in environmental law; and Mathias, lobbyist and man in a hurry, will see their destinies turned upside down and intertwined by the terrible act of a desperate farmer.