Sixteen-year-old Canny Mochrie's parents go away on a vacation, so they send her off on a trip of her own with her step-brother Sholto and his opinionated girlfriend Susan, who are interviewing the survivors of a strange coal mine disaster and researching local folklore in 1959 Southland, New Zealand. Canny is left to herself to wander in a mysterious and enchanting nearby valley, occupied almost entirely by children who all have the last name Zarene...