Residents of a big city, each of whom has their own sexual problems and desires, secret and, most often, shameful from the point of view of society, need to solve them. Each of the characters tries to solve their problems in their own way: someone sublimates them, someone turns to a psychotherapist for help, someone rushes into experiments... but sooner or later they all return to where they started, and they have to overcome themselves again and again to get at least a little, even a millimeter closer to their happiness.

Nina is a successful family woman, but she has her “Achilles’ Heel”: her younger sister, the reckless Alla. Nobody understands why Nina looks after her all the time. One day Nina’s patience comes to an end, but she has to face a difficult choice...