This is Shaun Jeffrey's first novel, but is not the first story I've read by him. I find his stories always a bit creepy and this certainly fits into that category.
A woman wins a prize in a competition she doesn't remember entering. The house is in an isolated village, made even more isolated by the strange fog surrounding it. That's been there for a few years. Yes, that does sound like a ludicrous plot, but hey, not all plots have to be sensible. This is a spooky horror(ish) book, so you have to suspend belief.
I needed to be in the right mood to get into this. I started it once, then put it aside, but once I got into it, I rather enjoyed it.