This book pissed me off, because it’s not a standalone novel but the first book of a series and I didn’t pick that up before I started reading it.

It’s a fun set up — a severed hand (of a demon or devil?) causes people to go violently bonkers and/or kill themselves to show allegiance, but if someone dies near the hand they become something like a zombie

It has a fun gangster/noir vibe, but really you’re kinda waiting to see how the author is going to pull it all together … and then he doesn’t, because the story continues in a future book :(