http://www.alluc.com/l/Louis-Theroux-By-Reason-Of-Insanity-S01E01-x264-C4TV/zbbeu7d3
Highly recommend this as it is interesting and insightful as Theroux's documentaries usually are plus it deals with mental illness. Of course there is the general idea of heavy medication that is put forward as a cure for their "illness" and pain of childhood trauma is sadly and expectedly left entirely undiscussed.
As a specific example, there was a man who had killed his father, whom he believed had sexually abused him and Theroux or the psychiatrist don't seem even slightly interested whether the father had actually done it. Instead Theroux keeps asking the patient questions like "Do you/did you love your father". I'm sure he could never prove that his father raped him as he was thirtysomething when he killed him but I kept imagining some analogous situation where in a documentary the interviewer keeps implying to a rape victim who had killed their assailant that they should have instead loved their rapist. How sick would that be?