Episode 1
S1E1
–
After meeting a vampire, the Shilov brothers discover superpowers in themselves. Sergey and Lyokha learn that in the city building of the research institute there is a portal between the worlds of people and evil spirits, which periodically drop in to visit. Werewolves, witches, mermaids and other "tourists" from the dark world are looked after by employees of the secret organization "Border of Worlds"