A body is discovered on a collective farming during harvesting in 1982. A subsequent search of adjacent woods, authorized by newly installed forensic science specialist, Viktor Burakov, turns up seven more bodies in varying stages of decomposition. The film tells the story of the subsequent eight-year hunt by Burakov for the serial killer responsible for the mutilation and murder of 53 people, 52 of them below the age of 35. Burakov is promoted to detective and eventually aided, covertly at first, by Col. Mikhail Fetisov, his commanding officer and the shrewd head of the provincial committee for crime, and, much later, by Alexandr Bukhanovsky, a psychiatrist with a particular interest in what he calls "abnormal psychology".