Big city crime boss.
Demons. 
Angels.
Shadowy, off-the-books government agency.
Collectors of eccentric, odd things.
Massive corporate military suppliers.
Rock 'n' roll.
Zombies.

Holy shit.

This book should not work. This is like not knowing what to make for dinner, and just making random grabs from cupboard and fridge contents and throwing it together...so you end up with eggs and Jell-O and soya sauce and icing sugar.

But, damned if Rosson doesn't just make it work, but he utterly smokes the concept. 

The other thing that shouldn't work for me is zombies. I dislike zombies, because they're mostly really boring to me. But, much like THE WALKING DEAD, Rosson knows that, if used sparingly and more as a trigger for other things, they can be effective.

Seriously, this book truly blew me away. Rosson takes a lot of care with his characters, and the plotting is both intricate and unguessable. This is easily in the top five horror novels I've read this year, and it may be the top one (we'll see when I read the follow-up in a couple of months). 

But yeah, I haven't read a lot like this, but if I must compare it to something, I'd compare it to the best of John Skipp and Craig Spector's co-authored works, but more complex and intricately plotted.

Brilliant stuff. Easiest five stars I've given this year.