The protagonist of the film decided to create his own "City of the Sun", based on the ideological platform of the philosopher Tomaso Campanella, in which former alcoholics and parasites would live in equality, justice and Christian brotherhood.

A humorously filmed story about miners singing in a choir. There is also a middle-aged choir leader who is looking for a cheap decent piano all over the town, and when she travels she tries to lure a minibus driver to sing in the choir. And miners of all ages, discussing in the bathhouse why they need this singing. And classes where some yawn, while others sing strange voice exercises intently. And the disturbing evening before the concert, when all the members of the choir are trying on ceremonial white shirts with butterflies.