Plagued by self-doubt, Commissioner Wallander is on the verge of quitting his job when a new case pulls him out of his depression. Lawyer Sten Torstensson asks Wallander for help: His father died in a car accident at night, but he does not believe it was an accident. His father would never have driven too fast in fog, and besides, he had seemed agitated and troubled lately. Two weeks later, Sten Torstensson is also dead...