Children are disappearing one after another in the city. Parents are desperate, the police are convinced that they will return on their own, and there are not enough volunteers for all of them. What if the children are kidnapped for a specific purpose? The case is taken by Oksana Koshkina, nicknamed Cat, who recently returned to the police. It seems that the missing children are part of a larger scheme that involves many parties. The deeper Oksana dives into the case, the more she realizes the scale of the disaster. And the sharper her own memories from the past hurt her.