A very strange teacher appears at school, who instead of a lesson topic tells the students 3 stories. These are modern interpretations of the legends about Onar, Irga and Chotkar - the heroes of the Mari people, "the last pagans of Europe". However, the head teacher of the school begins to suspect something is wrong.

Two married couples of neighbors, the Lebedevs and the Bubliks, are forced to go on a long journey together to one of the northern cities - Nezhnogore, where some are going to get divorced, and others - to spend the holidays. But crazy adventures and discoveries await them along the way.