While old Oliva tells a group of children about his life as a sailor and how he met Diana and her cat with sunglasses, a strange circus arrives in town.
Upon returning home from an official party, a Czech government official and his wife discover it bugged and surveilled by mysterious figures, driving them to paranoia and intensifying their discontents with one another.
This comedy is about one average family. The father works as master in the factory and his son is studying on high school. One day father must start to visit the evening school. It's the same school as his son visiting. The lives both students are connecting together. The son must teach the math and physics his own father. The father getting to know, that the life of the students is not simple as he supposed.