Anneliese Michel was said to be possessed by demons and underwent a ten-month-long voluntary exorcism in 1975. The Exorcism of Emily Rose and Requiem are based on Anneliese's story. The documentary movie Exorcism of Anneliese Michel features the original audio tapes from the exorcism. 2 priests & her parents were convicted of negligent manslaughter. When she died she weighed 68 pounds. The case has unfortunately been labelled a misidentification of mental illness, and abuse.