Take a shocking journey into the heart of phenomena that have captivated mankind for centuries with THE UNEXPLAINED. Many people are surprised to learn that the classic horror film The Exorcist is based on a true story, but even more shocking is the fact that this centuries-old rite is practiced, even today, across religious and cultural divides. Featuring interviews with the priests that performed the actual 1949 exorcism upon with the movie was based, EXORCISTS traces the compelling history of this controversial practice. Can otherworldly forces take control of people, or are cases of "demonic possession" really examples of mental illness? Uncover the details of the ancient Catholic ritual, explore exorcism in cultures worldwide, and learn the troubling reasons for the rite's resurgence among some fundamentalist churches today.