Last Chants for a Slow Dance (1977)

A terminal “road-movie”, 'Last Chants' single-mindedly follows the path of its central character, Tom Bates (Tom Blair), through an unspecified period of time as he talks to a hitch-hiker and then throws him out of his truck, visits his wife and has a fierce argument with her, talks to a man in a breakfast cafe, picks up a woman in a bar and has a one night stand with her; leaves the woman, and cruising in his truck on a back road, pulls over to help a man with his broken-down car, and shoots and kills the man, for a few dollars.