In the course of scientific experiments, a substance was obtained that allows professional military subjects to experience post-mortem experiences of the soul, as well as to look beyond the boundaries of the afterlife. However, such research leads to unpredictable consequences in the form of contacts with otherworldly forces, Demons and other undead that strive to use the “living” for their own purposes. One of these experimental subjects is the mentally ill girl Varvara, who has previously been noted for her abilities of telekinesis and precognition. Soon she informs observers that her own memories lead her to a swamp inhabited by ghosts, where everything that was once invented by man is animated, and myths and legends become reality. Her words are questioned, and fears and concerns are not taken into account in order to continue the experiments , therefore she is forced to remain silent about the fact that the Demon also appears to her, promising to protect her in everything and not asking for anything in return. So, having lost faith in God and the living, she falls in love with the Night Guest and blindly follows him into His dark Kingdom.