A young boy wakes to find his mother missing. Outside, he sees her favourite scarf - wrapped around the neck of a snowman.Detective Harry Hole soon discovers that an alarming number of wives and mothers have gone missing over the years.When a second woman disappears, Harry`s worst suspicion is confirmed: a serial killer is operating on his home turf.Soon the first snow will comeAnd then he will appear againAnd when the snow has goneHe will have taken someone else. . .