On the Edge (1995)

A man. A woman. A single night in Paris. Such is the basic framework of this French romance that begins when middle-aged middle-class housewife Clara, happily drives to the airport to meet her husband who was supposed to come in on the evening flight and is devastated to learn that he has remained at his hotel and is having an affair. Clara sees a younger man eating a sandwich and asks him to have a drink. Later, she and he, an amiable baggage handler, spend the evening talking and exploring the nightlife on the outskirts of Paris. There they meet many people from other countries who come to Paris and work as laborers.