If you love B A Paris' Behind Closed Doors and Linda Green's While My Eyes Were Closed, you will love Before I let You In, the brand-new novel from Jenny Blackhurst, the number one best-selling Kindle author of How I Lost You, which Clare Mackintosh called 'utterly gripping'.

If you don't know who is walking through the door, how do you know if you should let them in?

Karen is meant to be the one who fixes problems. It's her job as a psychiatrist - and it's always been her role as a friend. But Jessica is different. She should be the patient, the one Karen helps. But she knows things about Karen. Her friends, her personal life. Things no patient should know. And Karen is starting to wonder if she should have let her in.