Élodie and Yvan Marsais, her husband, are moving into a house with a garden for the first time, in a peaceful new neighbourhood. This is an important step, supposed to give a new lease of life to their relationship and a better balance to their teenagers: Achille, a gifted boy, and Chloé, a more fragile girl. Fortunately there is Bruno, the nice and considerate neighbor with each of the members of the family. A real good surprise, especially for Élodie and Chloé who immediately feel a special connection with him. Unfortunately, Yvan's pressure at work interferes with this new harmony and Chloé creates new problems. To make matters worse, Élodie suspects Yvan of desiring other women...