Crime boss Mantis was diagnosed with a terrible brain tumor. Doctors leave no hope. The only goal for the short period that life has left for him is to find his son and the woman with whom he was once close. However, having arrived in a city where he had not been for more than ten years, Mantis learns that Marina drank herself, and their son, Vanya, was sent to an orphanage, but he escaped and, according to rumors, lives with the street children at the station. At the same time, in the city of Solnechny, where Mantis worked for some time as a literature teacher and managed to destroy the drug trafficking channel, strange events are taking place. Instead of a fair trial of a gang of drug dealers, there are constant attacks on witnesses and pressure on investigators.