Sorry, this episode is not currently available

Part 1

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.

50 minutes

Last on

Sat 29 Nov 2008 03:35

Horizon on Facebook

Human face and robot face in profile

Shareable photos, videos and discussion for each episode