Herluf, Eyvind and Ove are friends from school. Ove's son, Henrik, has a groundbreaking invention in which Herluf invests for his glass company, and Herluf's daughter is interested in Henrik for private reasons. But when the invention fails at a large demonstration, it cracks in Herluf and Ove's friendship - so much so that they end up in front of Eyvind, who is the judge.