Naar katten er ude (1947)

It's not always easy being a father – archivist Jørgensen knows this all too well. His only son, Bent, is more interested in the band he and his friends have formed than in his studies. One evening, as the house shakes with syncopated rhythms, the archivist loses his hard-won patience and gives his son the choice between giving up his music or moving out of the house. The next day, Bent seeks out his two friends to complain about his plight, but his friends have more than enough of their own worries, which can be summed up in one word: money.