The young Daniel is a highly talented student at the Copenhagen Academy of Music. As such he draws the attention of his teacher Pierre, who encourages him to pursue an international career. At the same, Daniel he falls in love with his fellow student Sophie and the two of them move in together. The young man finds it increasingly difficult to concentrate on his music – especially because he is suffering from jealousy. Daniel accuses Sophie of having an affair with his teacher Pierre. Step by step, Daniel loses control of his feelings. This gripping drama captures the flitting atmosphere of the metropolis of Copenhagen perfectly and paints a disturbingly precise picture of obsessive, pathological jealousy. The outstanding cast is headed by the young Cyron Bjørn Melville, who is being celebrated as a new star in Denmark.