When a documentarian delves into the dark world of satanic art for a new film, he unearths a disturbing painting that leads him into a world of post-Exorcist Italo-Horror where cursed medallions, possessed children and the overwhelming power of the dark lord converge to create a visually stunning and wildly eccentric exploitation classic from Massimo Dallamano (Venus in Furs, What Have You Done To Solange?).