You'll Die Next! — Harry Whittington

An ordinary fellow wakes up to a stranger knocking at his door and is beaten to a pulp, fired from his job, and plunged into an insomniac nightmare from which he cannot escape. Of all the writers who specialized in soft-cover originals during the paperback boom of the 1950s, Harry Whittington was certainly the 'king'.--Bill Pronzini.