When a young woman goes missing near the sleepy Icelandic village of V k, police inspector John Ward wants to cancel the Northern Lights Festival after his sole witness describes the kidnapper as a Shadow.
However, police commissioner K ri Ingason overrules him, fearing the loss of tourist revenue will cripple the village.
Scientist Rakel Atlad ttir and her peculiar assistant R nar offer to help Ward investigate the disappearance, plunging the trio into a fight for survival, with the fate o.