Somewhere in the city of Cork, a woman's cry echoes through the rainy streets. On a bloodstained mattress in a grimy flat, a burly man lies dead. A terrified girl kneels over his body. She has been trapped here for three days. It doesn't take DS Katie Maguire long to identify the murder victim. He is someone she has been trying to convict for years - a cruel and powerful pimp who terrorised the girls who worked for him. It's Katie's job to catch the killer. But with men like this dead, the city is safer - and so are the scared young women who are trafficked into Cork. When a second pimp is horrifically murdered, Katie must decide. Should she do her job, or follow her conscience? Should she allow the killer to strike again?