A new Italian documentary explores the concept of evil and the phenomenon of satanic possession, drawing on historical and religious theories. The film examines the idea that rare individuals, often described as tyrants, may be influenced or enchanted by Satan, leading them to commit severe acts of violence or cruelty. It also proposes that Satan is the source of various psychological conditions, including depression, suicidal thoughts, and most cases of schizophrenia. These theories are presented by priests and abbots, who are central to the documentary's narrative. The documentary takes a broad look at the concept of "evil," considering both its spiritual and psychological dimensions. It delves into the practice of exorcism, explaining how it is performed, its supposed causes, and the various methods used to address spiritual afflictions. According to the film, all these methods involve prayer, which is considered essential in the process of healing and deliverance from supposed demonic influence. The film has been described as disturbing due to the range of theories it presents, many of which are considered controversial or absurd by modern standards. It raises questions about the role of religion in interpreting mental health and the nature of evil, while also highlighting the historical and cultural significance of exorcism in various traditions. The documentary has sparked debate among viewers and critics, with some calling it an intriguing exploration of human psychology and spirituality, while others criticize it for promoting outdated or unfounded beliefs. Regardless of one's stance, the film offers a unique perspective on the enduring fascination with the idea of evil and the supernatural.