I'm just becoming familiar with the work of Koontz, having read two of his many novels, and here I've happened on something in the dregs. Very derivative, much like the film Fallen, if you've seen that one. The problem lies deeper here, though; there is a stilted distance to the narration, with sentences far too pleased with their own preciousness to serve the narrative flow. Way too much telling rather than showing, especially in the early going. Characters feel more like sketches and cliches than true human beings. In short, seek elsewhere for your next read.