 He insinuates himself into the investigation, planting clues to steer his subordinate officers toward a series of other suspects, including the woman's gay husband and a student leftist radical.He then exonerates the other suspects and leads the investigators toward him to prove that he is "above suspicion" and can get away with anything, even while being investigated.In the end, he confesses to the crime in front of his superiors - who refuse to believe him.