The Jackpot!

To his family, François Voisin is nothing more than a humdrum civil servant. In truth, for the past twenty years he has been working as a crack secret agent. When he discovers his son skipping school and follows him to know where he really goes, François learns that his wife Hélène is having an affair with another man. With the aid of the latest hi-tech surveillance equipment, the jealous husband finds that his rival is a second-hand car salesman masquerading as an international terrorist.