Autumn 2008. The world's finances collapse but one man makes a killing. John Paulson, a softly spoken hedge-fund manager who still took the bus to work, seemed unlikely to stake his career on one big gamble. But he did - and "The Greatest Trade Ever" is the story of how he realized that the sub-prime housing bubble was going to burst, making $15 billion for his fund and more than $4 billion for himself in a single year. It's a tale of folly and wizardry, individual brilliance versus institutional stupidity. John Paulson made the biggest winning bet in history. And this is how he did it.