Seconds, by David Ely

This 1963 novel should be better known (as should the 1966 film adaptation, which is perhaps the best work Rock Hudson ever did), and it’s ideal for Mad Men fans because it’s also about a successful man who can’t seem to resist the urge to flee his happy life and reimagine himself. In this case, literally: "Wilson,” as the 50-ish bank executive in this book calls himself, signs up with a company that fakes his death, remakes him into a physically younger man, and sets him up with his dream career in an all-new life, to disastrous consequences. There’s no doubt Don Draper would have done this if he had the chance.