Since Benno Geyer fails to pass his Abitur due to his panicky exam anxiety, Dr. Fritz Geyer enrolls in high school under his brother's name. As a model student, he has no trouble getting good grades, but he quickly becomes unpopular among the students. From then on, he tries to impress with the craziest pranks.

District Inspector Pokorny was transferred some time ago from Vienna to the fictional Upper Austrian town of Mühlstadt after assaulting a suspect while on duty. There, as he says, he has to deal with "idiotic scoundrels who steal each other's chickens." Police officer Janisch was given a quick trial and sentenced to seven years in prison for robbing the post office in Litzelsdorf. His colleagues do not believe he is capable of such a crime and try to catch the real perpetrators. At the same time, they have to deal with a multitude of other cases.

After World War II, a lot of people, who lived in the eastern parts of the Third Reich had to be relocated. One of them is Hugo Starosta (Martin Held) with his family. They live in a fortress. Hugo is unemployed, his children don't seem to like school, but somehow they managa to get through.

Clemens Andermann, once a celebrated stage and film star, now an equally successful industrialist, is firmly convinced that his son Andreas is studying chemistry in the idyllic university town of Freylangen. But he is completely mistaken. In reality, his offspring has secretly been hired by theater director Löwe to play Romeo. He would also love to play the role to his stage Juliet, the charming guest star Monika Holl. Then the telegram announcing his father's visit hits like a bombshell. Together with his friend Oskar, Andreas tries to keep the deception going by impersonating his father's doppelganger – an undertaking that initially descends into utter chaos and ultimately leads to a happy ending.

The film portrays the assassination of Archduke Franz Ferdinand of Austria in 1914.