Audiobook. Excellent police procedural, first in a series, read by the inimitable Kate Reading. The only caveat I have about listening to this as an audiobook is sorting out the Norwegian names and keeping the characters straight.
Hanne Wilhelmsen is a detective inspector in Oslo and the putative protagonist of this series, yet she came across as almost a minor character. The story, hardly a spoiler, involves corruption at the highest levels, but the solution lay more with the foolishness and errors of the bad guys rather than any particularly illuminating insights of the cops.
Certainly others in the series will be worth reading.