It is called kaamos—two weeks of unrelenting darkness and soul-numbing cold that falls upon Finnish Lapland, a hundred miles into the Arctic Circle, just before Christmas. Some get through it with the help of cheap Russian alcohol; some sink into depression.

This year, it may have driven someone mad enough to commit murder. The brutalized body of a beautiful Somali woman has been found in the snow, and Inspector Kari Vaara must find her killer. It will be a challenge in a place where ugly things lurk under frozen surfaces, and silence is a way of life.