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.

Honza and Zuzana are very young husband and wife. They have a little daughter of whom willingly occasionally take care the grandparents and Honza's fifteen-year-old brother Martin. Zuzana continues studying and Honza devotes all weekends as an amateur competitor to the motor-cycles at the speedway. Zuzana is not interested in motor-cycles. Martin holds responsible for his brother's marriage and at the advice of his friend Magda, who is of the same age, invites her sister-in-law to the club of Hucul horses so that she does not feel bored. But by misfortunes and unexplained quarrels both young husband and wife start being jealous of one another.

Bláža is a bland-looking student who is eager for her first love experience. Even though experienced men are interested in her, she doesn't yet know exactly what her chosen one should look like. The question is, however, whether a shy non-junkie who at most casts coy amorous glances has a chance of success...

More than twenty years after the Second World War, a mining engineer named Fischer is revealed as a former member of the Gestapo, Karel Kraus. He is sentenced for murder to eight years in prison and now works with other prisoners on the renovation of the Convent of St Agnes of Bohemia in Prague. Then a car with a foreign registration begins to park regularly close to the construction site. Its crew, a man and a woman, contact the construction foreman, who probably would not reject a bribe offer to perform some service. The prisoner Bicík is appointed to work with Kraus; Bicík gives him a message from Kraus' brother Bert, who lives abroad, that he wants to help him escape.

As unbelievable as it sounds, a stint in prison can really fix things. The old seasoned pickpocket will serve many years before he is released, but he comes out a changed man. He even dares to refuse the lures and threats of an all-powerful criminal gang to cooperate with him.