Ten years ago, in the depths of the Finnish winter, Detective Elea Baker's daughter, Liisa, was taken - and never found. Now, in the quiet streets of Lincoln, girls are disappearing again. When one is found on the cathedral steps, clutching a chilling clue linked to Liisa, Detective Swann knows there is only one person who can solve the case: Elea. Dragged back into her nightmare, Elea is determined to bring her daughter home this time, no matter the cost. But is she chasing a ghost, or on the verge of uncovering a truth that will shatter everything she has believed for the past decade?