Wow this was a nail biter to the end. You think you know who did it and then you're not sure and then you think you. But dang was sort of right about who ended up doing it but was definitely wrong about some things. 
 This story is about Libby Day whose mother and two sisters are murdered one night right after New Years'. The authorities think that Ben Day, Libby's brother committed the crimes and as the story unfolds you're not completely convinced that they weren't wrong. 
 That's all I can say without spoiling you if you haven't read the book yet. Also this is in the same time frame as "Gone Girl" were each chapter flips back and forth in time between characters. This is definitely gory in detail. 
 (view spoiler)[So as the story unfolds we find out that Ben got his girlfriend, Diondra pregnant and he has some sketchy interactions with a young girl named Krissi Cates. Until the end you are thinking did Ben do it did he murder any of his sisters? Then we find out about who Ben was hanging out with that night and they are kind of performing satanic rituals especially with the whole cow massacre. I really was nervous when I read that part because I thought shit they were just high on drugs and ended up killing almost an entire family. I do feel bad for how Michelle died, she definitely did not deserve to go like that and who Libby puts the pieces of the puzzle together wow, just wow. And then I totally did not see that coming with the mom and the man she went to meet. I thought that would come into play but I wasn't sure how. And then Debby's death that was sad. Overall, I think the mom, Patty Day was trying to help her family and tragedy struck but I'm not sure that any good would have come out of the situation even if it had gone according to plan. (hide spoiler)] 
 This book is definitely intriguing a few warnings are for gory details, animal massacre, sex, drugs, alcohol, and possibly inappropriate relationships.