Dans l'ombre des dunes.

Superintendent Becker arrives in a small town in Les Landes to try and win his wife back. Tired of her husband's late hours, she decided to go back to her home region, where she meets old friends. Becker swears he'll do better, and he'll spend more time with his family... But a series of strange murders occurring in the region which forces him to dive into this case. With the help of a young cop, eager to prove himself, the "Parisian" will try and solve the case despite his promise to his wife.