Before I Go to Sleep by S.J. Watson My rating: 4 of 5 stars

Book blurb:

'As I sleep, my mind will erase everything I did today. I will wake up tomorrow as I did this morning. Thinking I'm still a child. Thinking I have a whole lifetime of choice ahead of me ...' Memories define us. So what if you lost yours every time you went to sleep? Your name, your identity, your past, even the people you love - all forgotten overnight. And the one person you trust may only be telling you half the story. Welcome to Christine's life.

My review:

Imagine what it would be like to wake up everyday lying next to a stranger. A middle-aged man you don't recognize. When you look in the mirror you don't recognize the woman looking back at you because she is so much older than you are. Nothing around you is familiar. Absolutely nothing.

This is what Christine's life is like everyday, until with the help of a doctor she starts keeping a journal.

I initially thought that maybe the man she wakes up with was repeatedly drugging her in some way, or that maybe she was the victim of some sort of an experiment. My imagination was racing as the story played out. In the end, it was nothing so sinister, and yet in its own way it was more sinister than I had imagined.

This story kept me on the edge of my seat and I could not put it down until I had read the entire thing. Very suspenseful, very gripping. I'll admit that I did figure out the twist in the plot quite awhile before it was shown, but I still really enjoyed the book and the ending.