in 1967 in 'Northern Capital of Russia' Leningrad a series of brutal murders occurred in the Obvodny Canal area. A mystical symbol of absolute evil was left by the criminal at each crime scene. Several people were arrested in this case, but none of them were involved. Meanwhile Vasily Filippenko was arrested and convicted in Crimea for attempted rape. While serving this sentence, he bragged that he knew who killed the girls in Leningrad. The information reached the detectives, and Filippenko was convoyed back to Leningrad.
—Andrey Da!