Murder on Perun's Day

“The people here were not what they seemed at first glance.”
There is no communication in Perunivka, and in the only shop in the entire village, it is impossible to buy anything except expired products. The village does not accept strangers. Each of the fifty inhabitants of Perunivka has something to hide. Especially when it becomes known about the murder of a seventeen-year-old girl.
Investigator Matvii, who is forced to find himself in the village, decides to help the precinct officer investigate the murder. The case is actually solved when another body is found. However, his intuition tells Matvii that everything is not so simple. Will the man be able to figure out what Perunivka really is and return home, or will he stay here forever?