A rich bachelor, Pavel Haken, tries - with the help of his faithful servant - to escape the courtship of marriageable young ladies. They meet at a ladies' social club. In the cafeteria there, he is helped by the talkative Andula, the daughter of a poor taxi driver. Haken longs for peace and has a secluded weekend villa built for him. The brief silence that followed his mother's departure is interrupted by the inhabitants of a tent camp. The girls from the club have taken advantage of Mrs. Haken's offer and camped on their property, and Andula helps out in the camp kitchen...

A very hardworking but also very naive insurance company clerk, Valentin Plavec, becomes the target of endless pranks, jokes and recessions from his colleagues Bejšovec and Voborník. However, their last successful trick somewhat gets out of hand. They add a one to the winning number 8456 and convince Valentin that he has won a million in the lottery. However, since Valentin cannot collect his winnings immediately, he withdraws twenty thousand, which is all the savings he has saved together with his fiancée Helena, and starts shopping for a deposit. However, the truth soon comes out and when his colleagues reveal to him that it was just a joke, they all leave him, only the faithful Helena stays and even helps the unfortunate fiancé cancel all the deposits and agreed deals. When the newspaper reports that there has been a mistake and the winning ticket is number 18456, Valentin decides to take revenge on the two pranksters...

Dvořák's well-known composition reappears again and again in the serious moments of the lives of the father and son Hupeks - talented non-professional musicians for whom music gives them the opportunity to rise above difficulties and problems...

It all begins when Zuzanka, the new young owner, arrives at the dilapidated Blue Star Hotel. Determined to put the declining inheritance back on its feet, she starts chasing three young men, including the composer Jirka, who, dressed in a waiter's tailcoat, is to work off his debt to the new owner. Like his two friends, Jirka succumbs to the charms of his new boss and, with some confidence, hopes that he is the one who has the best chance of becoming her chosen one. At that moment, however, a guest arrives, intent on carrying out the family tradition and throwing an engagement party at the Blue Star Hotel, regardless of his condition. This, however, is not to the liking of his wilful fiancée. Fortunately, there is the sympathetic Zuzanka, who charms the unusual guest so much that he resolutely breaks off his engagement to the rich girl and prefers to marry the cute hotelier.

Rudolf Bartoš, the owner of a farm, quarry and factory, is extremely rich, however, he is unapproachable and irritable, and the dread of his employees. One day he falls down a steep slope by a river and hurts himself. The quarryman Fábera finds him groaning in pain and takes him to his cottage.

Seventh form pupils at a grammar school in Přívlaky are preparing for a secondary school sports competition. Class creep Krhounek gives the class teacher Lejsal a copy of the seventh form’s magazine Roar. Most of the teachers insist on severe punishing the culprit. The author does not own up and consequently the whole class is punished by being banned from taking part in the schools competition. The most gifted pupil, Benetka, rather sharply criticises the school in a homework essay on a subject of his choice. The strict Czech language teacher is convinced Benetka is the author of the school magazine. Benetka denies the charge but his expulsion from school is proposed anyway on account the views he expounded in his essay. Eventually, Boukal, the author of the school magazine comes forward and admits to writing it. The pupils are allowed to take part in the contest and thanks to Benetka they win. In the meantime however the teachers vote to expell him.

The bickering of envious mistresses, the criminal intentions of fraudsters and the love of two young people are at the center of events, in the middle of which unfolds the fate of the city executioner Jiří, who longs to break free from his destiny and become a proper burgher. He is not heard, but he manages to expose the iniquities and their culprits, reunites a hard-pressed couple in love and his undeniable merits for the city and eventually bring him luck.

Ríša, a student of law, neglects his studies in favour of parties and pranks. His angry father refuses to continue helping him out of his debts. Ríša, however, is not entirely beyond hope. He decides to go and stay for a while with his uncle, a priest, who lives in Moravia, in order to prepare for his exams. He meets Helenka, the timid daughter of the local gamekeeper, at a village ball and is enchanted by her. The days pass and their idyllic relationship begins to tire Ríša. He begins to tell Helenka about his former debauched life the about the broken hearts of beautiful women. Helenka is hurt and refuses to see Ríša anymore. His uncle, the priest, is incensed at his behaviour and orders his nephew out of the house. Ríša tries desperately to find Helenka so he can make it up to her.

The wealthy factory owner Osten has achieved his position thanks to his energy and diligence. However, he has one weakness - he cannot admit that he too must grow old one day. What scares him most is the thought of becoming a grandfather. To prevent this, he is willing to become a rival in love with his own son. One day, Jiří has ​​had enough of his father's actions and decides to leave his house and his comfortable life. He even changes his name and starts working in a competing factory as an ordinary worker to prove to his father that he too is capable of working his way up from scratch. That is when Jiří meets the energetic seamstress Tonička, who is studying in the evenings to become an office worker. The young people are happy together, but the factory owner Osten comes between them. He offers Tonička a position as a secretary and is ready to win her over...

Thirteen people have gathered at Mayor Bartoš's. The company is uneasy about this number and therefore warmly welcomes the fourteenth guest, who is the new librarian Pavel Čtrnáctý...