Salem Hawley may be a free man after the American Revolution, but his troubles are plenty. A good friend seeks his help, turning Salem's attention to the graves being emptied and the deceased experimented upon and studied by medical students and physicians. It goes ignored, yet Salem is determined to do something, anything. If only he knew about the rituals being performed, the Old Ones being worshiped, right under his nose. If only he knew that New York City is on the cusp of ruin.
Leo Cartwright's retirement plan doesn't go exactly to plan - not when he meets Christopher Tate after his very last show. Christopher has a secret to share, one that he entrusts with his favourite comedian. When Christopher ends up dead soon thereafter, what's Leo to do but act on the information he's been given, even if it's completely insane? Setting out to find the mysterious town named Elswich, Leo can't deny there's something off about the entire thing. For one thing, the community of the town doesn't seem normal.