The parents of seventeen-year-old Lera Vaseliadi contact the Beagle agency with a request to find their daughter. She left home three days ago, but never returned. Soon the detectives discover two corpses. An unknown killer dealt fatal blows to Lera and her grandmother with an ax. Beagle promises the mother of the dead girl to do everything possible so that the villain is found. At first, suspicion falls on a graduate student of the Faculty of Philology of Moscow State University, a Dostoevsky lover, Kirill Dvorak. However, Alina, who returned from vacation, seriously questions this version.