Horizon - How Mad Are You? Part 1

Seizoen: 45 - Aflevering: 2 / 332 - Eerst uitgezonden: 11 november 2008 - Episode ID: 128109

First of a two-part special. Ten volunteers have come together for an extraordinary test. Five are 'normal' and the other five have been officially diagnosed as mentally ill. Horizon asks if you can tell who is who, and considers where the line between sanity and madness lies.