Derren Brown has a system for winning at the horses. In this one-hour special, the maestro of mind control anonymously tells a single mum from London which horse will win at the next day’s races – again and again – culminating in a final, massive bet. Investigating the psychology behind gambling and using his unique combination of skills to create guaranteed wins, Derren proves his system works every time. Not only that, but he explains it fully to viewers at home. But how fool-proof is this system and will his participant, believing in him and his predictions, risk her life-savings on one more race? Shot on locations including Sandown Park and Newbury race courses.

Channel 4, Friday 1 February 2008, 9PM