Composer and pianist Blaz Gaber lives only for his music and does not want to know anything about the outside world, where the war is raging. Upon his arrival from his poorly attended concert, he finds himself in prison for having stars drawn in his notebook by a little boy. A young illegal activist seeks refugee in the school, where the pupils hide his pistol inside the Gaber's piano. A German officer comes with his soldiers to find the hidden illegal, orders the school to be evacuated and takes the piano together with him on a train.

One day, Fortune and Worry come to town. Fortune leaves her magical cloak in the local inn, saying that it fulfills every wish to those who wear it. However, Worry knows that Fortune doesn't come alone, but brings worries with herself, too. The magical cloak changes its owner and fulfills the most unusual wishes of timid professor of violin, old night guard, naive student and blonde girl. When all their wishes are fulfilled, they find out that they did not achieve happiness.