When a high-school principal hears of an encroaching threat, an escaped convict who has been silently breaking into teenage girls' homes in the night, he becomes overly protective of one of his closest students.

It follows Theo Richter, an Irish detective who teams with Kiwi cop Diana Huia to find a young Irish couple vanish from an infamous rural North Island New Zealand town. Amidst the search and a race against time, the pair have to contend with a community’s growing disquiet that the disappearances may be linked to a series of historical murders.