A seventeen-year-old village school graduate, a guy nicknamed Kazan, dreams of becoming a famous rapper and winning the heart of Sveta. For the sake of his dream, he is willing to risk everything, but circumstances steer his life in a different direction.

The story about the choice that has to be made between loved ones and morality when there is no other option for development. The two main characters of the film are forced to make this choice in their respective relationships: Sasha with her own husband and Anya with her son. The drama of the situation is exacerbated when they are involved in crime.

The film takes place during the full-scale Russian invasion of Ukraine. After the Kakhovka dam is blown up, a detachment of Ukrainian soldiers led by a female fighter with the call sign Mara finds themselves in a secret Soviet bunker at the bottom of a reservoir where the USSR conducted human experiments during the Cold War. The consequences of these experiments are still in the bunker in the form of the half-living corpses of Soviet soldiers. Now, in order to survive, Ukrainians need to defeat the Soviet zombies, their own fear, as well as overcome internal disputes and trust each other.