THEIR DREAM HOUSE WILL BECOME HER WORST NIGHTMARE'Ruth Ware just gets better and better' Lisa Jewell, bestselling author of The Family Upstairs'The queen of creepy crime' MetroWhen Rowan comes across the advert, it seems too good to be true: a live-in nanny position, with an extremely generous salary. What she doesn't know is that she's stepping into a nightmare - one that will end with her in a cell awaiting trial for murder. She knows she's made mistakes.

But she's not guilty - at least not of murder. Which means someone else is... THE TURN OF THE KEY IS:'Eerie and Tense' Prima'Dark and dramatic' AJ Finn, bestselling author of The Woman in the Window'Deliciously dark and spooky' Sunday Mirror'Powerfully atmospheric, unguessably twisty' Louise Candlish, bestselling author of Our House