I haven't read Shutter Island by the author but have heard such great things about the book that I went into this group read with Poonam , Emer , Rohisa and Anuradha with high expectations. And did this book crash and burn. 
 The first few pages of the book were really interesting (view spoiler)[ About Rachel shooting her husband (hide spoiler)] but before the chapter is through it swerves leaving me so confused. I hoped the book would pick up after this but no it din't. (view spoiler)[ The whole double life Brian leads did not come as a surprise nor did his survival after Rachel shot him (hide spoiler)] 
 I honestly thought that the author has merged 2 different story lines in this book or maybe half way through they got a ghost writer. At least if the writing had been fast it would have still been ok but there wasn't even that saving grace. (view spoiler)[ Also I am no medical expert but I do not think you can shock someone out of having panic attacks. (hide spoiler)] 
 So why a 2 instead of a 1. Because even though it felt like 2 different story lines on their own they would have been so much better. (view spoiler)[ Plus I liked the whole passport game Rachel plays with Brian (hide spoiler)]