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.

Sol, a famous Argentine Tango performer, has lived in Buenos Aires for many years. Behind her excessive temper and her glowing smile, the Diva hides an injury from which she never really recovered: the loss of her only son, Raphaël.

A struggling actress accepts to coach her famous sister on a tough shoot, but their relationship soon evolves into dark territory.