Atmospheric horror paying tribute to Italian '80s B-movies, blending tension and splatter while unsettling the audience with demonic possessions, the paranormal, murders, and a healthy dose of gore. In a cloistered convent shaken by mysterious deaths, a Bishop sends two priests: an exorcist and a paranormal expert. While the former falls victim to Evil, the latter uncovers a terrifying secret: the Mother Superior has hidden a daughter for years, believed to be "of the devil," raised in isolation and endowed with paranormal powers. Caught between attraction and madness, the truth erupts in an explosion of blood and vengeance that leads to the destruction of the convent. Overwhelmed by the events and by an unsettling bond with the girl, the priest loses his sanity. But even when confined to an asylum, the shadow of the demon seems ready to return.