Behind Her Eyes by Sarah Pinborough

Behind Her Eyes by Sarah Pinborough is a thriller novel.  It's kind of along the lines of Girl on the Train or Gone Girl.  They're all psychological thrillers.  This one was good, but mostly because of the ending.  The ending was a "no way!" moment.  Certain things about one of the characters were annoying, but they kind of had to be in order to get to the ending.  I was a little annoyed by that character throughout the book until the very end.  There's a crazy love triangle between a man, his wife and his employee.  The man and the employee have an affair.  The employee and the wife become best friends.  It's one of those books that makes you question the sanity of humanity.  If you enjoyed either of the two books I mentioned above, then I do recommend this book for you.  This one is at the same level as Girl on the Train.  I give it 4 out of 5 stars.