Thomas meets someone wonderful and it's love at first sight. But something is wrong: a door.

Antoine suffers from amnesia after an accident whose cause he cannot remember. He undergoes therapy with Prudence, a psychotherapist. During a walk in the park, where he meets Prudence again, his memories slowly begin to resurface.

In a future where heat has ravaged the planet and air has become unbreathable, two scientists and a journalist venture into the heart of dead zones. Their mission is to find a mythical flower, the last hope to save humanity.

Bruno and his apprentice Robin work in the high-tech company Oxy, when their car breaks down in the middle of the vineyards, Gilles and his son Tim, who live nearby, come to help them. Robin must then go with Tim to look for coolant.