Twelve-year-old Tui Mitcham, daughter of the local drug lord, is pulled from the freezing waters of an alpine lake in New Zealand. She is discovered to be pregnant and won’t say who the father is. Then she disappears. Robin Griffin is the straight-talking detective experienced in child protection who is called in to investigate. But as Robin becomes more and more obsessed with the search for Tui, she begins to realise that finding the girl is tantamount to finding herself – a self she has kept well-hidden.