The following description is from the Dean Koontz website. Frank Pollard is afraid to fall asleep. Every morning he awakes, he discovers something strange—like blood on his hands—a bizarre mystery that tortures his soul. Two investigators have been hired to follow the haunted man. But only one person—a young man with Down’s Syndrome—can imagine where their journeys might end. That terrible place from which no one ever returns… -------------------------------------------------------------------------------------------------------------
Another Koontz trip into the supernatural. He stretches the ending (and the one in What the Night Knows) a bit much to have the protagonist overcome the bad guy. I am generally a Dean Koontz fan. This isn't one of my favourites of his but I liked it better than What the Night Knows.