Bonsoir is a 1994 French film directed by Jean-Pierre Mocky. Plot. Having first lost his wife, then his job as a tweed tailor, Alex Ponttin (Michel Serrault) has devised a novel way to keep himself in touch with society. He admits himself into people's homes by pretending to be a relative or an official and persuading his victims to give him a night's free board. He finds at first a lunch with the horrible couple Dumont (Jean-Pierre Bisson and Maike Jansen), where a thief follows him for a robbery.
https://en.wikipedia.org/wiki/Bonsoir_(film)