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Australian good girl Sandy and greaser Danny fell in love over the summer. But when they unexpectedly discover they're now in the same high school, will they be able to rekindle their romance despite their eccentric friends?

It's a dreary Christmas 1944 for the American POWs in Stalag 17 and the men in Barracks 4, all sergeants, have to deal with a grave problem—there seems to be a security leak.

Postman Brabec is a welcome guest of the revue theatre for his sense of humor, and he brings his director Holt letters from female admirers every day. Holt's fans include Brabec's sister Anny. The girl would like to join the theatre, but for the time being works as a maid for the actress Velden. A new revue is being rehearsed, the name of the author is secret. Veldenová will return the role just before the premiere because she doesn't like it. The quick-witted Brabec introduces the director to his sister, who knows all the parts by heart.

Tomás, accompanied by his biographer Lina, calls upon his two sons, Jesús and Antonio. The sons find themselves competing for a potential inheritance. The discovery of a large flag standing in the garden triggers a wave of family conflict.

The film is about a slightly crazy botany professor Ducánek, who is so busy with his scientific experiments that he has completely forgotten that he is married. Neither his housekeeper Veronika nor his friend Potužník knew about the existence of his capricious wife, the operetta diva Lucy. However, when his wife returns home after seven years in remorse, Ducánek takes a complicated action to elegantly get rid of his wife...