Arthur, 1973

Why couldn't my parents just love each other?

On an old tape found in a cellar is recorded the voice of a stranger, Arthur. As he remembers his childhood, he asks himself "Why couldn't my parents just love each other?", but cannot give an answer. In the image, a couple look for each other after an argument, while Arthur's familiar voice rings out. Who are they? Who is really Arthur? Can we trust this voice, that tape?