I absolutely loved this mysterious and disturbing thriller, and this author is fast becoming one of my favourites. I loved the way the book was split up into past, present and future, or ‘rewind’ ‘pause’ and ‘fast forward’. This really helped to split up the book and increase the tension. There are some very creepy characters in this story and it definitely makes you think about who could be watching you! I also liked the main character and found myself rooting for her. This story is written very well, the descriptions are great and help massively with visualisation. This book is full of tension, mystery, creepiness and thrills, along with twists and turns that keep you guessing. I will definitely be looking out for more from this author, as this was a great little thriller with a great storyline and characters to match, four stars from me.