I always confound this film with another of this kind - L'AGRESSION - and also starring Jean-Louis Trintignant in the role of an ordinary law abiding citizen who suddenly encounters many issues against some lunatics whilst he is travelling on French roads and motorways with his child. In the other film, he co stars Catherine Deneuve and here Mireille Darc. Both stories are quite different though; this one closer to Steven Spielberg's DUEL than the other one which is closer to DEATH WISH and the vigilante scheme. My feelings were the same for both films made the same year, or one year in between. But I still think that the Gérard Pirès' film L'AGRESSION would have been more in the Serge Leroy's line - vigilante issue - than this one, a pure thriller without anything social, the Serge Leroy's trademark. But he will make it with 1983 LEGITIME VIOLENCE.