S2·E5 Episode 5

Yevgeny Bokov suspects a mass killing took place in the mansion, but the mayor presents the tragedy as an accident. During interrogation, Ostrovsky reveals compromising facts from Slava Vdovin’s past, and the fleeing young man is declared wanted. Meanwhile Zlobin finds the ritual shop where the black ribbon was purchased, and the investigation gets a new witness — a surviving victim of the serial killer.