After the loss of her father, Una sees a chance to escape Reykjavik to tutor two girls in the tiny village of Skalar - population just ten - on Iceland's storm-battered north coast.
But city life hasn't prepared her for the unforgiving weather nor inhospitable village life. Worse, the creaky old house where she lives is playing on her already fragile mind when she's convinced she hears the ghostly sound of singing.
Then, at midwinter, a young girl is found dead.
And one of the villagers must have blood on their hands . . .