Michael Paterniti was working in a gourmet delicatessen when he encountered a piece of cheese that was to change his life. It was Paramo de Guzman, a rare Spanish queso reputed to be the finest, and most expensive, in the world. Paterniti was too broke to actually buy the cheese, but he vowed that one day, he would track down this cheese's true story. Ten years later, he decided to make good on his pact, and headed to the cheese's tiny hilltop village birthplace. Guzman's cheesemaker proved to be a voluble, magnetic, heartbroken genius, suitably named Ambrosio. But Guzman proved to be no...