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.

The parents of a two boys remarried after divorce. The older one stayed with his father and his attractive young wife, while the younger one stayed with the mother and her new husband. On Sundays, the two boys visit the other family alternately, and the younger Djuro will soon realize that they have much more in common.

During a summer holiday, two boys discover an anti-gravity cannon in an old attic.

After WW II many young people arrive to Zagreb, among them a young worker Sonja Kacar. She is supposed to participate in the construction of the first generator in the Rade Koncar factory. Because there aren't enough experts and materials in Yugoslavia, the factory counts on help from fellow communist countries, Czechoslovakia and Soviet Union. However, after the Inform Bureau's resolution this help is no longer available. Sonja experiences a great intimate disappointment because Stjepan, who she is in love with, supports Stalin.