True Horror Not Easily Forgotten
I've read three of Adam Neville's novels, and No One Gets Out Alive was the first. The horror in Neville's work has little to do with plot and everything to do with mood and tone. Every last atom of the fictional worlds Neville creates add to the dense, forbidding atmosphere. When things start to actually happen, the reader already wants to run away but can't quite manage it, having already gotten sucked into the book, stuck in the moldy carpet or relentless rain.
For me, reading these books was like peeking through my fingers at something so horrifying I don't want to see it and yet I have to look. Honestly after the third book I just couldn't do it anymore, and I NEVER get scared by novels much less horror novels. Nothing bugs me--and I mean NOTHING--but now I can't say that anymore.
Please do read Neville's fiction but go in forewarned. If you get scared reading Stephen King or Dean Koontz, better take a pass. You won't make it out of the novel alive. Or, at the very least, you won't be able to forget it, not even years later when it's dark and you are alone and the house smells damp.