When Margot goes in search of her birth mother for the first time she meets her aunt Nikki instead. Margot learns that her mother Susan was a sex worker murdered soon after Margot's adoption. To this day Susan's killer has never been found. Nikki asks Margot for help. She has received threatening and haunting letters from the murderer for decades. She is determined to find him but she can't do it alone...A brilliant thought-provoking and heart-wrenching new thriller about identity and the value of a life from the award-winning author of The Long Drop and Conviction.
