Country tailor Florian Svíčička neglects his work because of his interest in medieval history. When preparing an amateur performance at Zdislavice Castle, he gladly replaces the bailiff and plays the role of a knight. However, he ruins the performance and is shamefully banished. On his way home, he witnesses a horrific scene in the forest: two knights behead a young girl. It later turns out that it was a filming, and the girl Hana, a double for the famous diva Elvíra, spends the night with Florian at the castle because the filmmakers accidentally leave her. The master loses patience with Florian's excesses and Florian is fired from the tailoring shop. He sets off for Prague to find the girl he was with at the castle the night before. However, he does not know her name and accidentally comes to Elvíra's villa. The diva is not at home. Florian finds a love letter in the villa and thinks it is addressed to him. However, upon his return, Elvíra mercilessly throws Florian out...

Hospital orderly Rozruch, denied his therapeutic treatment, is mistaken for Dr. Marek at the insurance office and sent to a spa. Councilor Pěna, plotting to wed his mistress after his daughter Heda’s marriage, also arrives. At the spa, impostures collide, identities are exposed, and hidden motives and loyalties come to light.

Mr. Ducháček runs the law firm of JUDr. Faukner in a peculiar but completely devoted manner, which manages the financial affairs of the Rispaldic family. The family members treat their lawyer Faukner with condescension, except for their daughter Julia, who secretly loves him. However, no one except Ducháček knows that the squandering family no longer has any money and that JUDr. Faukner is subsidizing it, because he is also secretly in love with Julia.

The captain of the Prague shipping company, Adam Korkorán, lives his dreams of commanding ocean liners, even though in reality he only sails a small steamer on the Vltava River. The company's management still has problems with him, so when Korkorán refuses to retire, they at least send him to a spa. However, at the train station in Poděbrady, a servant from the most expensive spa hotel accidentally takes away his suitcase with the luggage of a rich lady. As a result, Korkorán is mistaken for a corvette captain and a rich man. Dazzled by the luxury, Korkorán befriends a retired admiral and begins to play a game with the spa guests and himself. He is even declared the most popular guest of the season. When he runs out of money, he writes to his housekeeper to send him all his savings. The horrified woman decides to go to Korkorán, and the truth comes out...

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...

Detective Klubíčko is searching for the murderer of a wealthy loan shark because he is the only one who does not believe that the victim's husband, the private entrepreneur Zakhar, could be the murderer. Inconsistencies in the statements gradually lead him to the real perpetrator. He is only able to convict him with the help of a crime reconstruction...

The factory owner Hložek is in a constant dispute with his son Jiří. Jiří wants to modernize the factory, but his father is afraid that the new machines will deprive the workers of their jobs. News of the factory modernization divides the employees into two hostile camps. To prevent unrest, Hložek offers his son money from his mother's inheritance in exchange for his departure. Jiří's biggest opponents include two older employees of the company - the correspondent Málek and the accountant Mazara...

This light-hearted comedy operetta tells the story of a newly appointed high school professor who becomes an ideal target for pranks and jokes.