I've had it with the stories that require a psychological smokescreen twist ending in order to enthrall the reader. It's over-done. As is self-doubt the reader is undoubtedly supposed to experience in the protagonist's sanity- in this case it's pill-popping. The self-medicating heroine left a lot to be desired, the author clearly has no love for complete sentences or sentence structure at all, and the ending was terribly disappointing. Not my idea of a good ghost story.