When a picture of two Danish girls who disappeared on a boat bound for England in 1985 emerges many years later in an old suitcase from a British second-hand dealer, the journalist Nora Sand's professional curiosity is immediately awakened.

But before she knows it, she is mixed up in the case of a serial killer who is serving a life sentence in a notorious prison and the quest to discover the truth about the missing girls may be more dangerous that she had ever imagined...