Book review - Before I go to sleep

I am a big fan of our local library! I can browse the catalogue on line, reserve a book and when it comes in they email me to collect it. It's great. I used to buy books all the time but one day I realised that a) I don't have enough room for all those books, and
b) it's not good value to buy a book for $20 - $30 and read it maybe twice if I'm lucky.  So, now I just (usually) only buy books by my favourite author and borrow all the rest. On Monday I borrowed "Before I go to sleep" and I finished it last night (Tuesday). Seriously, I could not put it down. I started reading in my lunch break Monday then after putting the boys to bed that night, instead of watching Revenge, I sat by the fire and read...and read...and then I went to bed and read some more! I read more at lunch on Tuesday then finished off the last 50 or so pages last night (sorry kids - dinner will be late!). I definitely falls into the thriller category. Needless to say I enjoyed it!!  Now I need a new book to read - any suggestions?