There are a lot of cats living in the city of Koshkovo. But they don’t always walk on their own, even though the famous saying says so. And another one - “your own shirt is closer to your body” - does not in any way suit tenth grader Artem, who happened to encounter something terrible and supernatural. After all, friends are under the gun of an unknown horror. And for the sake of his friends, Artem is ready to do a lot, including risking his very life if they are in mortal danger. However, the young man does not consider this to be heroic - it’s just the circumstances...