The 13th Clinical Hospital as we know it does not yet exist, and humanity is just beginning to come into contact with supernatural phenomena. To be ahead, the USSR is beginning to look for doctors who are ready to go beyond conventional medicine. One of these doctors is Yana, a neuropsychiatrist who is going through a family drama. Arriving at the hospital to save Brezhnev after his fatal contact with a demon, the girl unexpectedly finds out that her son was being held hostage by Lucifer. Now she has to not only rescue her child by becoming a vessel for the demon, but also take on the role of the head physician of the world's first mystical hospital. So, the 13th clinical clinic begins its work. Yana and her colleagues will have to spend a lot of effort on mastering new treatment methods and studying entities. And the country's leadership needs to find out whether it is possible to use N-phenomena for defense against external threats.