This film explores the events surrounding the assassination of Mussolini's chief political opponent, socialist Giacomo Matteotti (1885-1924). Matteotti (Franco Nero) was outspoken in his opposition to Mussolini and his principles. Because the investigation of the assassination by an honest judge (Vittorio De Sica) climbed up the rank and file of government officials and ultimately pointed directly to Mussolini himself, it made his political base very shaky, and he (Mario Adorf) moved from constitutional government to dictatorship.

~ Clarke Fountain, All Movie Guide