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...

Engineer Frank Nor loses his sight in an unfortunate accident. When his superficial fiancée Eliška leaves him, Frank attempts suicide. To prevent him from repeating his attempt, his father hires a young nurse, Milena. The girl takes exemplary care of Frank, literally becoming "the apple of his eye"...

A series of unfortunate events led the protagonist astray: even taking other people's money did not save his wife's life, she died in childbirth. After his release from prison, he did not find the strength to report to his daughter who was placed in an orphanage, and after a fight in a pub, out of fear of being prosecuted again, he even fled abroad. But, old and sick, he still longs to return to his homeland.

When the yacht of her former lover Mario Tudor arrives in Split, widowed Countess de Milesi, plagued by financial troubles, is hell-bent on selling him a fake copy of an expensive painting.

Rich spinster Berta celebrates her sixtieth birthday. Her faithful admirer Dr. Jelinek proposes. But Berta can not forget Edward, the great love of her life, and refuses the offer…

Young engineer Petr Pavelec works on a dam plan on the Loučnica River. He meets Irena, the daughter of an unscrupulous construction entrepreneur Berka, and falls in love with her. When Petr's project wins the tender, Berka and Irena take him on as a partner, and the company is awarded the contract to build the dam. Petr, in love, does not see how sloppy the construction is being carried out. He only sees it when a worker is killed on the construction site...