Investigation of a Citizen Above SuspicionInvestigation of a Citizen Above Suspicion

A promoted police inspector kills his lover, plants evidence against himself and tests whether his reputation puts him above suspicion.

An inspector in Rome's murder squad, known only as Dottore (Gian Maria Volonté), is promoted to head of the political office. He kills his lover Augusta Terzi (Florinda Bolkan) after the two have engaged in sadomasochistic games in which she played the victim. He then plants evidence that points to himself and anonymously alerts the police. Antonio Pace (Sergio Tramonti) sees him leave the building. Investigators find fingerprints, footprints and fibres from a blue silk tie. Dottore, who shows right-wing views and argues for a strong police force, adds further clues. He hints to his superior, the Police Prefect (Gianni Santuccio), that he knew the victim; the Prefect suggests that Augusta's husband (Massimo Foschi) should be considered the likely culprit.

Story written by Evenitto from TMDB and Wikipedia