Film Trailer of S J Watson's Before I Go to Sleep. If you thought the book was scary have alook at the Trailer

If you didn't read SJ Watson's psychological thriller Before I Go To Sleep you missed a treat. 

It's bad enough that she wakes up every morning to a completely erased memory, but add in the intrigue and you'll be petrified. 

This book was really scary and atmospheric.  My advice is

to read it before the film is released in September, then go and watch the film. If the film is half as good as the book (and with two great well -cast actors Nicole Kidman and Colin Firth in the leading roles) I have high hopes for it. Trailer of Before I Go To Sleep