In this hit Russian musical, a group of friends flaunts Soviet authority in 1950s Moscow by embracing jazz. When Communist Mels falls for Polly, a free-spirited jazz fan, he risks losing his party membership by associating with her rebellious crew.

What will happen if, as a result of biological warfare, almost the entire male population dies out? Women will grieve (for a short time), and then they will unite and create a new better world - with eco-towns, renewable energy, opportunities to do whatever they want, even science and biohacking, even yoga and self-development. Reproduction now occurs by artificial insemination, and only girls are born in the new world. But not everyone likes such a world order. Some of the surviving men and women loyal to them go to live in abandoned cities, begin to steal electricity, enjoying freedom and traditional sex. The tranquility of the ideally arranged female world is threatened when teacher Rada from the eco-city "Two Hills" meets the young "primate" Hera outside it.

This is a poetic film set in the times of Lenin's NEP. A ballet dancer steals a brooch and gives it as a present to another dancer. This is a crime of passion. A mysterious black ball is after the heroine. She runs away from it and manages to give the brooch in an exquisite pirouette movement, as shiny as diamond facets. What gives a stone its dazzling luster are its polished facets. But the real gem is love, and it's much harder to get than any diamond in the world.