Ebéd (1978)

Despite his young age Pisti is offered a job at a local furniture factory, which he can't refuse as his father is unemployed for a year. He becomes the only one in his family with a stable income, he even earns their credit back at the groceries. At the beginning his ashamed dad tries to help him in every possible way, but one day on a lunch after a serious overtime their relation radically changes, and the father no longer talks to his son.