A newly appointed teacher finds herself being followed, and soon discovers that one of her own students is obsessed with her.

Kaisa is a Scot, a successful London lawyer, who snorts coke and has one-night stands with strangers. Her mother calls from Aberdeen with some story begging her to fly to Norway and collect her alcoholic dad whom she hasn’t seen in years.

In AD 922, Arab courtier, Ahmad Ibn Fadlan accompanies a party of Vikings to the barbaric North to combat a terror that slaughters Vikings and devours their flesh.