A family discovers that one of their children is missing. It soon seems like kidnapping is the only possible explanation, but no ransom demand is received. Instead, there are disconcerting signs that the boy may have been somehow complicit in his own disappearance. Anatol Wasser, the policeman assigned to the case, soon finds himself investigating not one but a dozen child abductions. All over Switzerland kids are going missing, and supernatural explanations start to seem as plausible as rational ones.