Yves Beaulieu lives with his wife Anne, his daughter Stephanie and his mother-in-law. Tired of his dangerous, thankless, underpaid and unrecognized job as a deminer, Yves decides to try his luck and carries out a robbery in the nearby supermarket. Hunted by Inspector Rousselet (Patrick Sébastien), he is subjected to a mysterious blackmail and tries to escape justice to profit from the fruits of his crime.