Roma.During a clash between demonstrating laborers (whose fight the students have joined) a policeman and a student are both killed. The investigating magistrate - in charge of the case with two commissioners - wants to believe to the version of the police: the student was killed by one of the laborers, while the policeman would have been killed by Massimo Trotti.
Director: Mauro Bolognini
Producer: Gianni Hecht Lucari
Screenplay: Ugo Liberatore, Ugo Pirro
Story: Ugo Pirro
Director of Photography: Giuseppe Ruzzolini