Dangerous Knowledge

In this one-off documentary, David Malone looks at four brilliant mathematicians - Georg Cantor, Ludwig Boltzmann, Kurt Gödel and Alan Turing - whose genius has profoundly affected us, but which tragically drove them insane and eventually led to them all committing suicide.

http://video.google.com/videoplay?docid=-3503877302082311448

http://www.bbc.co.uk/bbcfour/documentaries/features/dangerous-knowledge.shtml