A strange tribe of people who live unseen on the margins of the world, haunted by their weird and tragic relationship with particular people in the world but cut adrift and mostly insubstantial. A writer who just caught a big break. A couple working in a bar/restaurant. A wealthy super-mom. These people and more are caught up in this strange underworld they can't even begin to understand. Everything gets spooky and strange and scary and dangerous. And because I've been out in the sun all day (the sun! The sun!) that's all I have to say about that. The core idea pushes it a bit, maybe more suited to a YA book than an adult thriller, but it's the usual good read you get from Marshall (Smith.)