“A bored housewife, a husband who married her for show, and a stupid boy who is full of himself because he is dating a Swiss woman.” The words of Inspector Tůma sound like they’re from a European melodrama, but in fact they come from a Czechoslovak crime story. A pair of detectives, counterfeit medicine, the high-society setting of a Karlovy Vary hotel, and Oldřich Nový as the aging hotel manager Kraus.

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.

Marta Dekasová works as a governess in a garrison town. The beautiful girl is the center of attention of many men, but she only desires Lieutenant Varga, who is married and rejects her. Desperate, Marta throws herself into the arms of the most intrusive of her suitors, and is then dismissed in disgrace. She goes to Prague to live with her friend Kiki, becomes a bar singer, and continues her journey down the sloping surface. Hope for a new life dawns on her when a young student falls in love with her, but just then Varga appears in the bar and rekindles her unquenched feelings...

A morally questionable lord comes to the aid of a working class man who is to be executed for speaking out about thieving rich scoundrels sticking it to the poor.

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 young princess arrives at her estate. She is bored by the welcoming ceremony and is quite happy to hear about the rebellious miller who refused to come to the castle. He lives with his mother and ward Hanička in an old mill. The miller is exempt from work, but he is obliged, if the lordship requests it, to accompany her with a lantern to the forest castle. The princess likes the miller and therefore uses his right...

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...

The imperial councilor Ullik decides to modernize his old mills by installing a new turbine. His eccentric brother-in-law Artuš tries to prevent this, as the construction work disrupts the statics of the tower in which he lives. Ullik's older daughter Tynda is a talented singer. The bewitched girl secretly accepts the courtship of the virile Václav, the son of the night watchman. Her younger sister, the doctor Marie, wins the heart and hand of the astronomer Zouplna, despite her father's prohibition...