The first film in the trilogy produced by the partnership between Elio Petri and screenwriter Ugo Pirro, _Indagine su un cittadino al di sopra di ogni sospetto_ is the Italian director's most successful film. With its courageous and historically providential subject matter, the film tackles socially and politically uncomfortable issues with the subtle intelligence typical of the director. Part thriller, part grotesque, and with a rhythm marked by constant tension, _Indagine su un cittadino al di sopra di ogni sospetto_ reconfirms the exceptional collaboration between the director and the immense Gian Maria Volonté. A must-see from Elio Petri, accompanied once again by the extraordinary music of the incomparable Morricone.

Very good actors, soundtrack obviously, and the themes. There's no other film that surprises me as much as this one, always intriguing, and it constantly makes the viewer question things throughout the entire film.

The original title of the film is Indagine su un cittadino al di sopra di ogni sospetto.

A terrific movie. I cannot stress enough how powerful its message is and how conveying Gian Maria Volonte's performance is. By the end of the movie you can't get his voice out of your head. Fantastica!