About the series
After encountering a vampire, the Shilov brothers discover they have superpowers. Seryoga and Lyokha learn that a portal between the worlds of humans and evil spirits, who occasionally drop by for a visit, is located inside the city's research institute building. Werewolves, witches, mermaids and other "tourists" from the dark world are kept under watch by employees of a secret organization called "Border of Worlds."