Somewhere in the San Francisco suburbs, Paul Harley has a surprise for his mistress, Larysa Zeryeva. He blindfolds her, leads her to his garage, and (surprise!) smashes her in the head with a tire iron. Harley then proceeds to cut up the body with a chainsaw. Meanwhile, over at Police Headquarters, Captain Stottlemeyer is investigating an arson case that took place at a wig factory. But Commissioner Brooks, Stottlemeyer's ornery new boss, has a more pressing matter for investigation: a woman's torso has washed ashore in San Francisco Bay. Stottlemeyer turns his attention to the torso murder, quickly bringing Monk on board.