An absolute corker of a read. Started off creepy and chilling. Gradually the 'safe house' Kate is taken to by Rob after her 'accident' becomes more worrying. It is a tech house and it becomes more oppressive. You can feel her tension as doubts begin to creep in about Rob's identity and motives. Both Detective Inspector Hart, who she worked with before the accident, and her friends Jake and Bex initially think she is delusional after her accident. She has another accident and other events lead them to begin to be less convince. More people start dying and eventually Hart begins to investigate but initially cannot convince his boss there is a problem. Jake is also investigating particularly after damage to his property. They begin to see links. The book builds to a climax with twists and turns right to the last page. Brilliant!