Behind Her Eyes By Sarah Pinborough

Don’t Trust This Book
Don’t Trust These People
Don’t Trust Yourself
And whatever you do, DON’T give away that ending…
‘Sarah Pinborough is about to become your new obsession’ Harlan Coben
Louise
Since her husband walked out, Louise has made her son her world, supporting them both with her part-time job. But all that changes when she meets…
David
Young, successful and charming – Louise cannot believe a man like him would look at her twice let alone be attracted to her. But that all comes to a grinding halt when she meets his wife…
Adele
Beautiful, elegant and sweet – Louise's new friend seems perfect in every way. As she becomes obsessed by this flawless couple, entangled in the intricate web of their marriage, they each, in turn, reach out to her.
But only when she gets to know them both does she begin to see the cracks… Is David really is the man she thought she knew and is Adele as vulnerable as she appears?
Just what terrible secrets are they both hiding and how far will they go to keep them?
‘Fully realised characters, peerless writing, a tank of a plot that sustains the suspense right to the end, and a whammy of a finale. It takes a lot to catch me out, but this one did. It'll get you too…’ Joanne Harris

I read this book as I had heard so many mixed reviews and opinions on this book. So I thought i would give it a go and see what all the fuss was.
I totally get all the mixed reviews and opinions on it as I wasn't expecting that ending either and if I'm going to be totally honest with you guys I didn't like the ending I thought it ruined a perfectly good story for me.
I like the way the author draws you into the story and how its written. You get the feeling that you got to carry on to the next chapter or more.
I was rally drawn to Louise in the story and how she got her focus on her son Adam. But still is worried about Adelle and Daniels relationship. Also feeling guilty about her feelings for Daniel and what happened between them.
And how Adelle is portraying Daniel to be. 
I do think the author captured all the character's right and that what draws you into the story. But that ending I really wasn't expecting that and its one that does stay with you for a while I think if it ended a different then maybe i would've enjoyed it more ill still give it 5 stars though and i will probably recommend it to others as well. As its one book not to miss I think myself .
https://www.amazon.co.uk/Behind-Her-Eyes-psychological-thriller-ebook/dp/B01D4ORFG0/ref=tmm_kin_swatch_0?_encoding=UTF8&qid=1508508307&sr=8-1