Les passagers (1977)

On a trip to pick up his new stepson, Alex notices a strange pickup following him and his stepson down the highway in Les Passagers (1977). It turns out that Alex’s wife Nicole's first husband is none too keen on seeing his wife and child get away so easily. What follows is a gripping, high tension chase that culminates in a bloody, explosive end. Mireille Darc is great as the mother, especially when lazing around the bed showing off her shapely buns and trimmed beehive.