Mrs Rokos is a grandmother in her age, lives with her son's family and feels useless, that no one needs her. Therefore, she decides to move from Prague to the countryside with her friend Tuzar...

Vlasta Burian, as a stowaway, disrupts the disciplined operation of a railway station. Mr. Ťopka gives the impression of a gentleman, somewhat Chaplin-like. He makes a living by doing odd jobs, for which he exclusively rides the train as a stowaway. During one of his trips, he meets the feared railway inspector general Kokrhel. At a small station, he manages to get out and change into the stationmaster's uniform. However, he cannot avoid meeting Inspector Kokrhel...

Tram driver Marie has far too much to do after her shift is over. But she likes to do it all since she loves her husband Václav sincerely. One day she spots him on the Lesser Town Square in Prague, kissing an attractive blonde good-bye. It seems to Marie that her small comfortable world has collapsed and she walks out of the tram in tears. But her sadness does not last long. She wipes off the tears and begins to act. She withdraws all the money from their savings books and buys off all the latest models from the Fashion Works. The visit to the beauty salon then completes her transformation into a lady.

Jindřich Tůma, a partner in the gas mask shop "Asana", has a very energetic wife who promotes a vegetarian diet. The real soul of the company is Ing. Ivan Kareš, who also leads civil defense exercises. On the street, during a practice air raid warning, he sternly reprimands a girl who did not go to shelter. It is Věrka, the Tůma's niece, who comes from the countryside to finish her studies in Prague. Věrka enters the seventh grade and soon shares the enthusiasm of her classmates for an unknown composer whose pseudonym is Michal Marhan. Ing. Kareš gives a lecture on civil defense in the seventh grade and so meets Věrka again. Kareš tries to convince the girls of the necessity of more concrete life ideals. At the premiere of Marhan's operetta "Píseň o štěstí" it turns out that Kareš is the composer. The girls give him a standing ovation. Ivan ignores Věrka, with whom he has recently had a falling out. The stubborn girl therefore leaves for home...

A wealthy playboy leads an irresponsible life until he meets an attractive and hard-working woman who leads him to transform his ways.

Řina Weberová, the daughter of a retired colonel, is the owner of a not very prosperous photo studio. Her elderly boyfriend, banker Václav Novák, secretly supports her financially because he is in love with her. One day, Řina meets her childhood friend, Vincenc Špaček, who has entered military service in Prague. The enterprising Vincenc and his inseparable comrade Vendelín Křídl advertise Řina's studio in the military garrison, so that the soldiers flock to Řina to have her photograph them. One day, Lieutenant Novák also shows up and immediately falls in love with Řina. Řina's father finds out that banker Novák is visiting his daughter, and he wants him to marry her...

The troubles of a young married couple with an overprotective mother and mother-in-law. Usually it ends with a wedding, but this time it begins. Young doctor Petr Dvořák marries the charming Marta Hábová. However, their honeymoon to Venice is unexpectedly complicated by Martina's widowed mother, a rich, kind, but very absent-minded lady. First, they are not allowed to cross the border because they did not declare the things she secretly packed for them for the trip, and then they spend the night behind bars because the mother-in-law, in her absent-mindedness, reports the secretly packed things as stolen after she catches a pair of robbers in her house. It is no wonder that the young marriage is soon shaken to its foundations...

Irča Miňovská, the daughter of a car factory director, meets mechanic Lexa Hora by chance. They fall in love, but Irča's father does not want his daughter's unequal relationship and decides to send Irča to a boarding school so that she cannot see Lexa. Lexa leaves the plans for her new engine with her boyfriend Harry Peters at the factory, resigns, and leaves to forget about Irča. Director Miňovský would like to produce a new type of engine, but Lexa is nowhere to be found...

Milada Dvořáková is about to get married to her business partner Dub, a gas station owner. When she catches him hugging his secretary, she breaks up with him. She sets up a rival company, ŽUB (Women at Gas Stations), and employs only single women. Dub also gets into the competitive fight...

Pharmacist Pavlovský has a modern and sporty son, Karel, also a pharmacist, whom he would like to marry. He therefore sends him to Kutná Hora to live with his friend Řep, who has a daughter of marriageable age. However, Miroslava is a girl strictly led by her conservative parents and therefore lacks any charm. Karel also meets his uncle Ambrož in the family, who lives a double life. He is a serious older man by day and secretly flees at night so that he can perform in the local theater.