Where do I begin? I think this is probably one of the most difficult and disturbing books I have read in a very, very long time. The premise of this book frightened me before I even started it, but little did I know how terrifyingly addictive it would turn out to be.

From the moment Joe sets eyes on Beck in the bookstore, he is completely and utterly besotted. He immediately starts stalking her: watching while she is in her apartment, reading each and every email she sends, following her across the country and keeping tokens of his obsession along the way.

This story is terrifying. It is very cleverly written with a second person narrative and it didn't take long for Joe to be inside my head. I had to keep reminding myself that this was fiction and that Joe wasn't stalking me. It is an incredible piece of work by the author. It was an addictive read from beginning to end and I couldn't stop turning the pages. I must admit, I wasn't expecting to read so many graphic descriptions. There is a lot of very sexual narration in this book and that won't be welcomed by everyone.

As a character, Joe is both creepy and mesmerising. At times I could not help but feel sorry for him. He was so totally and utterly blinded by his obsession that he truly believes Beck is obsessed with him and that all of her actions are laid out for his eyes. On the other side, I often felt repulsed by Joe's train of thought and the way in which he collected tokens of Beck's life

from panties, to a bottle of drink, to a used tampon

. This book felt so real and it scared me.

This book is clever in the way it makes you feel differently about your own life. It made me think about how much someone could learn about me from my social media accounts, or my personal interactions on my phone via email or text messages.

This is an excellent read. Unsettling, powerful and terrifyingly real. I know I won't be able to resist reading more about Joe, despite how he makes me feel.