This is a no brainer for me. I loved 'Then She Was Gone' so much that I simply must read this book. After reading the blurb I'm even more convinced this book will hold me in its grip until the last page. I'm already intrigued by the main character, spying on a mysterious neighbor sounds like dangerous fun to me and I'm compelled to find out what happens. Thrillers are my absolute favorite genre, this one will be on my TBR for sure!