When DI "Mac" McGregor came to Frantham he was a broken man, guilt ridden at the death of a child he had tried to save, whose killer had escaped. But he found friendship there, in the shape of Rina Martin's strange little household, and romance with CSI Miriam Hasting. But now his past is catching up with him. There are new leads in the child-killer case, and Mac rejoins the hunt only to become the hunted. Can Rina save him from his darkest trouble yet?