Alberto De Martino's imitative occult horror film, photographed by Aristide Massaccesi (aka Joe D'Amato), is probably the best of numerous Italian copies of The Exorcist which flooded theaters in the mid-1970s. Carla Gravina stars as Hipolita, a paralyzed young woman with serious mental problems stemming from the death of her mother. Her crisis of faith and the intervention of a well-meaning psychologist lead Hipolita to remember her past life as a witch during the Inquisition. Eventually, Hipolita becomes possessed and starts seducing local men, only to break their necks. Eventually, she sleeps with her brother, makes a local sorceror lick vomit from her hand, and levitates out the window. It takes an exorcism performed by an aging monk (George Coulouris) and the family housekeeper (Alida Valli) to restore order. De Martino and the talented cast manage a few chilling moments despite the predictable storyline, and Gravina is quite good in the lead.