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.
Massimo Ranieri
as Fabio Sola
Martin Balsam
as Giudice Aldo Sola
Valentina Cortese
as Luisa Sola
Turi Ferro
as Commissario Malacarne
Pino Colizzi
as Commisario Alberto Cottone (as Giuseppe Colizzi)
Salvo Randone
as Procuratore Generale
Luigi Diberti
as Massimo Trotti
Petra Pauly
as Carla Stale
Mariano Rigillo
as Luca Binda
Carlo Valli
as Alfio Ricci
