Louis immerses himself in the world of Ohio's state psychiatric hospitals, meeting patients who have committed crimes - at times horrifically violent - while in the grip of severe mental illness.
Unfortunately, Louis Theroux: By Reason of Insanity is not available in the UK on any of the streaming services.
Currently, you can only buy or rent Louis Theroux: By Reason of Insanity on Amazon in the UK, with prices starting from £2.99.
The first season of Louis Theroux: By Reason of Insanity was released in 2015.
There is currently one season of Louis Theroux: By Reason of Insanity, which was released in 2015.
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