During Midsummer 2009, Susan Rushworth, a mother, grandmother, and former grammar school girl, went missing. She was followed ten months later by Shelley Armitage, a one-time wannabe model. Four weeks on it was Suzanne Blamires, who had been a trainee nurse. All three sold their bodies for sex to fund their drug habits. All three vanished as if the cobbled backstreets had opened up and swallowed them in. And who could know many how more there were? Stephen Griffiths was a shy, eccentric student of criminology who always had a word of cautious advice for the working girls. He wandered the same...