Professor Tony Maden looks into the personalities of `super-functional' psychopaths and explains how individuals with power can ruin the lives of millions. Extraordinary footage from Jimmy Savile's past reveals that he knew he could get away with his sexual abuse crimes, while observations from those who knew media tycoon Robert Maxwell point to a man out of control and a dangerous psychopath who ruined people's lives without a second thought. Plus, rare footage of Adolf Hitler's behaviour in private offers an insight into his rise to power.