'Denise Mina is the cream of the crop, an author who pushes the crime novel in new and exciting directions and never fails to deliver.' IAN RANKIN

When Margo goes in search of her birth mother for the first time, she meets her aunt, Nikki, instead. Margo learns that her mother, Susan, was a sex worker murdered soon after Margo's adoption. To this day, Susan's killer has never been found.

Nikki asks Margo for help. She has received threatening and haunting letters from the mur ...