In an ordinary looking apartment, father and daughter are playing hide-and-seek. While searching for his daughter, she is nowhere to be found… Later, a video is released showing the girl holding a sign with a mysterious combination of numbers. But what do they mean? She is the first of several children to disappear without trace in a small industrial town.
Young detectives Varta Naumova and Maxim Shumov take on the complex case and … their demons. Varta is a distant character and very protective of her personal space, while Maxim comes across as a simple, social guy. Both of them have experienced trauma in their lives, and this condition touches them on a deeper level. They become personally tasked with finding the children and capturing the kidnapper as they confront their pasts.