Police discover Eva Nejtková dead in her apartment and her husband Zdeněk unconscious from a shotgun wound. Captain Hora leads the investigation, noting that the killer struck Eva fatally and shattered her large aquarium, yet carefully transferred the goldfish into a smaller tank. Initial suspicion falls on Zdeněk’s apparent suicide attempt, but financial records and the absence of drugs at the scene shift focus. Detectives trace psychotropic medication supplies to Eva’s dealings with local addicts. As they question these “práškaři,” they uncover a network of illicit sales and potential motives tied to debts and blackmail. Clues from the supplier’s arrest and addicts’ testimonies gradually reveal whether Eva’s murder was linked to her clandestine drug trade or if a more personal betrayal lies at the heart of the crime.

A twelve-year-old is looking for his biological parents after discovering the fact that he was adopted.

It is the summer holiday and little Mísa Horák has taken a few animals from the school's so-called "Corner of Living Nature" home to care for. But when he brings home two Angora rabbits, a starling, a little monkey, a tortoise and a small crocodile, his parents order him to take them away. He is helped by Káta, who offers to place the animals in the child's room of her family's apartment. Mísa leaves for her friend where the animals will hopefully be able to stay. Káta goes shopping. In the meantime, Káta's younger sister Minka wakes up and begins to play with the animals, who gradually run off in disarray.

The series of children's films about Detective Martin, who intervenes in cases involving children, begins with this film. It consists of two short stories: in the first ("Three Bottles"), the young hero, escaping from an orphanage, gets involved in a robbery of postage stamps..., in the second ("Flying Carousel"), the children fight a dishonest owner of fairground rides...

The second installment of children's stories investigator Dr. Martin. The film has two stories:

African student Omar would like to return home to Angola, but he is enrolled in a three-year postgraduate research fellowship at a clinic in Prague. One day while seeing off a friend at the airport, he and a girl named Mariama are brought together by chance as he offers to accompany her in an unfamiliar city toward the International Student Club, where she plays bass in a jazz orchestra.

The High Royal Chamberlain is accused of treason and imprisoned. Even if the suspicion proves to be unfounded, the prisoner finds his life in danger, because the royal majesty must not admit error. If the unfortunate man had confessed, he could have been pardoned, but the Vice-Chamberlain refuses such a solution as a matter of principle... This historical story, which aspires to the dimension of a parable, takes place at the dawn of the reign of John of Luxembourg.

A holiday story about first tentative love, set in a romantic cottage village on the banks of a river. There, a 15-year-old girl feels lonely and confused, bitterly reliving her hopes and disappointments...

A verger, who likes to dress as a priest, is invited, by one of the villagers, to be the pastor at a vacant church. The atheist teacher resents the pastor, and tries to embarrass him in various ways, including being caught with the local girl, Majka.