Broadmoor is Britain's most famous high-security psychiatric hospital and this two-part documentary will bring cameras in there for the very first time. The place was initially built as a Victorian asylum for the criminally insane, and is nowadays still home to some of Britain's most violent men, many of whom are considered too dangerous to be accommodated elsewhere. We will get to meet new patients to the institution as well as those who are responding well to the treatment, and those who are, well, not. Rare fly-on-the-wall access here into a place you really wouldn't want to end up in your worst nightmares.