Iceland, midwinter: the days are fleeting, the nights endless and Sergeant Magnus Jonson has been sent to an isolated fishing village in the West Fjords to investigate the possible homicide of a road construction worker. Ringed by steep mountains, this bleak village is cut off from the rest of Iceland and from the modern world. The locals are adamant that Iceland's legendary huldufólk – hidden people – had a hand in the death. Magnus finds their superstition suspicious... As he digs deeper, Magnus discovers that the victim was not a popular man, leading him to suspect that other, more human, passions are at work…