Stephen’s King’s second novel, “’Salem’s Lot,” is often cited as a favorite of the author’s, his fans, lovers of horror fiction, and even those disinclined to enjoy scary stories. The tale of an American town beset by vampires in the late 20th century speaks to several modern realities and anxieties, not least of which is the death of small towns. A testament to the book’s enduring admiration, three screen adaptations have been produced since its debut in 1975: as a TV miniseries in 1979 and 2004, and in a new movie having its premiere this week on Max (HBO).