In the office of the fitness club director, a painting hangs with the strange title “Bear’s Garden.” The canvas depicts a duel with foils. And nearby, in an underground utility tunnel/collector, they begin to find the corpses of young men with stab wounds. Teenagers who attend this club, out of curiosity, got involved in a game called “Test Yourself.” For that, they went down into the collector and encountered unexplained phenomena there. What perverted mind linked together the plot of the painting, the murders of young people, and computer games? Renat and Larisa set out to solve this problem and put an end to this strange and ominous story.