The Nanny is an immersive page-turner. It’s provocative and shocking and hurtles along at breakneck speed. The past forges the present; that’s a fact that’s well known. How long can we keep running before it catches up with us? We can lace up those Nikes and get a head start, but the funny thing about our past is that it’ll always know where we are, where we reside; its GPS is continually trained on you. Some people are lucky in the knowledge that their past harbours no secrets, no skeletons in the closet – but for some, as is the case of the protagonist, Hayley, her past is something she’s…