Drug dealer Šárlí ended up with a knife in his liver during a drunken brawl as a group of teenagers left a pub late at night. Commissioner Vašátko, who is already enjoying his retirement, is drawn into the investigation by the young man's grandmother, Forejtová, an old acquaintance of his late wife. It turns out that Vašátko's friend, the painter Horác, knows another member of the group, 16-year-old Zbyněk, whom he taught painting some time ago. Zbyněk is struggling with his authoritarian and precise father, the businessman Bouzek, and is clearly hiding something. Vašátko and Horác eventually uncover the background to the murder and its perpetrator. But first, they have to understand the titular "bug," as Vašátko calls the detail that doesn't fit in a criminal case. If the detail is not clarified, the case cannot be closed. In this story, the "bug" is a shoe found at the scene of the crime that does not belong to any of the participants in the altercation.

The future communist journalist Julius Fučík had a stimulating childhood and youth in a working-class environment, when his moral maturity was already showing. The authors of the film recall that the young Julek was a star of the suburban operetta scene, and in three episodes they depict him both in his early childhood and already at the gymnasium, when the outbreak of the World War shaped his determination.

A story of love and honor that takes place during the mid-nineteenth century during revolutions, as well as economic, political, and social hypocrisy. Two extraordinary but lonely artists share a passionate love, as evidenced by the preserved letters that they exchanged.

Adventures of the "How to Rip Whale Tooth" (1977) heroes continue... The story takes place in the countryside, where little Vashko's dad takes him and his mother, and where another surprise awaits them: not only an excellent holiday in the setting of a rock town, but also the figure of a grandfather, understanding all the dangerous beliefs in the turbulent surface of the renewed relationship of the three closest people. Vasek's other wish comes true - his dad teaches him the secrets of rock climbing. This shared passion, however, causes further conflicts between the two parents - much to the chagrin of both Vasek and his grandfather.

Vasek, 8 years old boy is desperate to find a new "father" for his mother.