4,5/5. Maybe a few stretch here and there to make everything fit and fall into place, but definitely a very good thriller. The writing is simple but very well done, you just can't stop reading and there is always something new happening to keep you into it. The characters are good, a bit clichés, but nothing that make me feel bad about, and I love the side of the story where everyone has something to hide and dark secrets, nobody is a good person here, this book won't make you love mankind more. The ending is also good, dark again, and in the end this book offer a damn good reading time, and this is the important part! Awesome thriller! Perfect for the summer!