The film, shot as a “historical documentary drama,” describes the so-called Fettmilch Revolt, or civil uprising, in Frankfurt am Main between 1612 and 1616. In the run-up to Matthias' election as Holy Roman Emperor, the citizens are called upon to take an oath to protect and ensure the safety of the electors gathered in the city. As part of the oath, the guild members are threatened with the loss of their rights. Now they want to demand that the council announce the privileges they know nothing about.