In 1996, Russia carried out the last death penalty. The murderer of 11 children was shot in Moscow. Sergei Golovkin, a lowly employee of a Moscow stud farm and one of Russia's most dangerous serial killers, has become a legend over the years of his "career." Teenagers were scared of his name, and they talked about him in the evenings at the pioneer camps. But no one knew that it was Golovkin. They called him 'Fischer,' and he seemed more than human.… How did "Uncle Seryozha", who was respected by colleagues and adored by students from the vocational training group, an ordinary man, turn into a sadist and a murderer? Why was Fischer's sentence carried out after the moratorium on the death penalty came into force? How did Fischer manage to get away with it for many years? What did Fischer do to children who turned gray with terror half an hour before they died? This is told by a famous criminal psychologist in a documentary thriller based on the materials of interrogations and interviews with the killer.