I really enjoyed this book within a book, though the ending fell a bit flat, as it wasn't unexpected what would happen. It was intended that way though, by the author of the book that's shown in this book. I really enjoyed how that was set up, including title pages etc. I also enjoyed the writing style of the actual author, and how it differed from the writing style of character Eve Black.

“As Dr. Weir had pointed out, the Nothing Man is an exceptionally apt name for a serial killer. "When you find him," she’d said to me, “you'll probably be shocked at just how much of a nothing he really is."”
4.5 ⭐️
This book was brilliant and unlike any other thriller I’ve ever read. The set up of getting to see both the survivor’s and the actual perpetrator’s point of view was so incredibly unique and raised the stakes from page one. Home invasion is one of my number one fears so this book often left me feeling freaked out (especially reading it at night). It’s safe to say the author is good at her job as I definitely won’t be getting much sleep tonight.

Twenty years ago, a serial killer hit homes in an area of County, Cork, in Ireland, leaving devastation in his wake. There were a couple of survivors including 12-year-old Eve Black who woke up to find her entire family dead in the house. Now Eve Black has written a book about The Nothing Man, her experiences with grief and her determination to discover who he is all these years later.

Jim Doyle is reading The Nothing Man, and the more he reads, the angrier he gets because he is The Nothing Man, and he remembers the night he murdered Eve Black's family, alongside all of the other people he terrified and tortured. Now he's ready to come out of retirement and he knows who his next victim will be.

This book is a genuinely very creepy and ofttimes terrifying read (especially if you have any fears of burglary, night stalkers or sleep alone!) but I really loved the premise of it. The book worked really well on audiobook due to the dual narration - Eve Black's portions of her book, and then Jim's POV and his reaction to what Eve is saying.

Catherine Ryan Howard is definitely becoming an auto-read author for me as she writes thrillers I love - engrossing, quick to read and original.

Part of me would have loved a little twist in the end with the epilogue and Katie's POV as it felt all a bit too safe, and a little sad but I do think it reflected a line in the book about a one-way ticket to loneliness and that was handed to Eve at 12 years, and Katie when she was a young adult. 

Wow this was an unputdownable book!  I enjoyed the way it was a book in a book as well as the alternate points of view.  I read this in a day, there was no way I could sleep without knowing how it ended!