Crazy As Hell (2002)

Ty Adams is a maverick psychiatrist whose non-medicinal approach for treating patients has crowned him a hero in some circles, and an egoist in others. At Sedah State Mental Hospital Adams agrees to be the subject of a thirty-day documentary, examining the effects of psychiatry on mental illness and conversely the effects of metal illness on psychiatry. The study progresses as planned, until the day that a mysterious stranger admits himself to the hospital claiming to be Satan. Through their intense therapy, the stranger works his way into Adams' world, unraveling his life, and pushing him into a battle in which only one of them will survive.