By day, Joe is a cleaner at the police station. But by night, he has another line of work - he's a serial killer who's been dubbed The Christchurch Carver. When another woman is murdered, the police suspect The Carver, but Joe knows it wasn't him.

While visiting her dying mother in New Zealand, Detective Robin Griffin begins investigating the disappearance of Tui Mitcham, a twelve-year-old pregnant girl from the small town of Laketop.