For student Denis Verbitsky, his grandmother is his only relative. Trying to find money for her treatment, he becomes involved in drug trafficking and is forced to flee. He finds a job near the Zone, but the new boss finds out about the criminal episode in his biography and begins to blackmail him. To avoid going to prison, Denis must go to the Zone in search of the director's little son. The student agrees, keeping silent about the fact that he himself dreams of getting into the anomalous territory: there you can find a “Doppel Apple” - an expensive and rare artifact that can become a medicine for your grandmother. But he himself has no idea what price he will have to pay.