With the help of his assistant Anja, Ottocaro Weiss intends to put the plague on stage: circumstances beyond his control and a lack of fresh talent have forced him to close down his flea circus. For Weiss, the plague means the «extinction of everything that makes life miserable and low and freedom along with it. Unbeknownst to him, he has won the support of a patron who is of the exact opposite opinion: for Johannes Wagner, the plague is an organising principle, and, aided by his agent Moosbrugger, he is able to smuggle a new number onto the programme. Whereas Ottocaro Weiss means to represent the plague theatrically, what appears on stage is the scientific reality of the rat-borne infestation.

The film is based on the figure of the police inspector Simon Polt of the Austrian author Alfred Komarek.

Thomas Donnhofer has turned his estate into a therapy center for horses. But some people are a thorn in the side, for example, Mayor Federer, who pursues other plans. Mayor Federer is only too happy to support the interest of a large hotel chain in Donnhofer's estate. Even privately, Thomas Donnhofer has to worry: his relationship is at stake.

Gendarmerie inspector Simon Polt in the Weinviertel region finds it too much of a coincidence when crook Riebel is killed in a motorcycle accident and his friend Willi is found dead on the same day. But the residents of the otherwise peaceful Lower Austrian wine village make Polt's investigation anything but easy.

Austria in the last years of the monarchy: Wilhelm Kasda, Lieutenant of the Infantry, lives the life of a young officer. These include small, irrelevant affairs like those with Steffi. Steffi is a simple young woman. Kasda does not realize that her devotion is real love. After a night at the hotel, Kasda gives her a bill and disappears. A few years later, in June 1914, Kasda was visited by a former comrade, Lieutenant von Bogner. He had to resign years ago for gambling debts, is now married, works as a cashier in an office and has embezzled money.

Real estate speculator Albert Hahn is found dead in his cellar. He died of fermentation gas poisoning. The doctor in charge assumes it was an accident. But Polt knows that the dead man was hated in the community. He suspects that the murderer wanted to make the death look like an accident. Many of the winegrowers had a motive. After a long investigation in the wine cellars, he discovers that all the cellars are connected by holes. Polt doesn't want to leave the feeling that it was a murder. As he drinks some wine with his friends, they all confess to the crime. They had all poisoned Albert Hahn with the fermentation gas together, but only one of them wants to take all the blame, as the rest have children and wives. He commits suicide and leaves a confession behind.

An alpine village shortly before the First World War. Widowed forester Rufman has little sympathy for his sons Friedel and Elias. Both find it difficult to cope with themselves. One day, a stranger appears whose curiosity confuses the suspicious villagers. Only Elias feels attracted to him. When a murder takes place in the village, suspicion soon falls on the forester's boys.

Policeman Simon Polt is on cloud nine. He finally has the village teacher Karin in his arms. But soon he's forced to look into the depths of humanity again: the priest's cook has been found dead. Was it the gourmet critic? The feisty woman had poured soup over his head the night before, in shock at the sight of an illustrious dinner party...