The Hellfire Club — Peter Straub

A riveting novel that “combines the intellectual-puzzle mystery with a powerful vein of psycho-thriller suspense” (The Washington Post) and “moves like an express train” (Stephen King), from the #1 New York Times bestselling author of Ghost Story.

They are dying, one by one. Wealthy, middle-aged women in an exclusive Connecticut suburb. Their murderer remains at large. Nora Chancel, wife of publishing scion Davey Chancel, fears she may be next. After all, her past has branded her a victim.
 
Then Davey tells Nora a surreal story about the Hellfire Club, where years before he met an obsessed fan of Chancel House's most successful book, Night Journey -- a book that has a strange history of its own.
 
Suddenly terror engulfs Nora: She must defend herself against fantastic accusations even as a madman lies in wait. And when he springs, she will embark on a night journey that will put her victimhood to rest forever, dead or alive.