The Truth About Demons is a New Zealand horror film released in 2000. The film was directed by Glenn Standring and stars Karl Urban, Katie Wolfe, and Jonathon Hendry. The movie follows the story of Dr. Harry Ballard, a skeptical anthropology professor who becomes obsessed with unearthing the truth about demonic possession. As he delves deeper into the study of demonology, he encounters a beautiful young woman named Marla, who claims to have escaped from a dangerous cult that worships demons. Despite his initial doubts, Ballard begins to believe that Marla's story may hold the key to the true nature of demonic entities.
Soon, the pair find themselves in a desperate race against time as they try to uncover the secrets of the demon world before it's too late. Ballard's investigation leads him to a remote island where he encounters a group of people who have been possessed by demonic spirits. As the demonic forces begin to take hold, Ballard and Marla must fight for their lives against the powers of darkness.
The movie is known for its intense and frightening imagery, as well as its exploration of themes related to faith, religion, and the supernatural. The Truth About Demons has been praised by critics for its originality and its willingness to tackle complex philosophical issues in the context of a horror movie. Overall, the film is a chilling and thought-provoking exploration of the nature of evil and the power of the demonic realm.