University of Turin. Prof. Nicoderno Beltrami, well-known psychologist and criminologist, university lecturer of the course “Fundamentals of psychopathology and criminology”, is interrupted during his usual lesson by a mysterious missive. An evil that has been dormant for over a decade has awakened and he is called upon to fight it in its form. A series of unexplained murders and ancestral symbols with an esoteric flavor await the psychologist overseas. The professor will undertake a disturbing journey between delusions, dreams and mysterious visions, which will lead him to confront the world of the supernatural and black magic.