In rural Montana, a serial killer is leaving women nude, tied to tries in the winter so they die of exposure. But it gets worse: Apparently he is shooting their tires, causing them to be in accidents, 'rescuing" and helping them before he kills them. And he is leaving a mysterious message with carvings and each scene building up to something the police have yet to figure out. 
 Now, Jillian Rivers, has been in an accident after someone shot her tire out - she is injured and in an isolated cabin with her 'rescuer' during a blizzard, wondering if she will be the next victim. 
 There are multiple mysteries here, and exected twists which kept me turning the pages. I enjoyed the story and really liked Jillian, Alvarez and Pescoli (the detectives investigating the case). But the huge unfinished business at the end - the cliffhanger to the next book, left me a little bit irritated. I like closure at the end of a 500 page book, but of course, now I am motivated to read the next one as the author intended.