Helen Fields is one of my favourite authors and this book was no exception. I loved it. I also didn't realise, until the main characters seemed a bit familiar, that it is a standalone sequel to The Shadow Man, another fantastic read. Connie is such an interesting main character and I really enjoyed getting to know more about her and what she had to endure when she was younger. The Institution is such a creepy setting, which paired with the risk of them being locked in, really amped up the tension. I also had no idea who could be trusted or who the killer was. If you enjoy crime thrillers that keep you on the edge of your seat then I highly recommend this one, as well as The Sadow Man. 

I received a copy of the ebook via NetGalley in exchange for an honest review