A year later. Same place, same friends. Genoa, Franco Nero, Enzo G. Castellari. And let's face it: in the most of cases, this situation would lead to a sequel or at least a spin-off.
Instead Enzo G. Castellari as we know doesn’t puts limits to his fantasy
and therefore remains far from his previous Genoese’s poliziottesco "La Polizia incrimina la legge assolve" to create a very different story.
Action, action and more action and of course the ghost of Charles Bronson of "Death Wish" that may be seen in the whole movie but apart from the great Enzo creates one of the most appreciated poliziottesco of the cinema.
Starting as mentioned by the avenger Bronson, Castellari leave the lead role to character of iron to the Commissioner to give it, as the title suggests, everything in the hands of a private citizen: the engineer Carlo Antonelli, the hero of the story. A man exasperated by injustice, violence, and especially by the ineptitude of the police.
After a breaking and entering Antonelli finds his house devastated, with a paint of his father former partisan destroyed.
Then, while he is in a post office there is a robbery.He tries to rebels but he is taken hostage and beaten. But the police does nothing. So the citizen rebels and seeks revenge by infiltrating into the underworld a path full of dangers.
There are many events, and  action, and a very tense plot that hasn’t slow moments. There is also a spectacular car chase that this time is directed by Italian Nazareno Zamperia which takes the place of Remi Julienne.
The story is very interesting, although there is an exaggeration in the use of music, however excellent, composed by the De Angelis brothers and some "poetic license" which allows story to move forward.
Castellari then directs with great skill and often finding a good appearance also in the discussed final scene (honestly it's too melodramatic), but objectively very nice to see.
Franco Nero in good in the role of hero and he has as shoulders Giancarlo Prete, Barbara Bach, Nazarene Zamperla, Massimo Vanni, Romano Puppo, all great actors of genre cinema.
Castellari also tries to stand in the middle of politics, referring to resistance on the one hand, with the sign "Italians Rise Up" (from the Germans) and criticizing the police. On the other hand, however, has no mercy for criminals killed by a violent avenger. A choice that created at the time negative reviews by area newspapers, all agree to call "Il Cittadino si rubella”  a violent movie, but divided on the message. "L’Unità" famous comunist newspaper the September 22, 1974 wrote: "Director of spaghetti westerns, Enzo G. Castellari has dropped a classic pattern on a whole different reality. So the fascist argument who is the basisi of his film (you have to take revenge by yourself, where those responsible fails) is frustrated at the apparent improbability for the characters and situations. (...) Is regrettable, however, that the scriptwriters and Maiuri and De Rita use an incongruous reminder of the Resistance perhaps in order to ennoble a thesis which, we repeat, is obtusely reactionary and foolishly"
Responds from the right wing, October 20, 1974 "The Borghese" "(...) Castellari, looking cautiously to cover the left wings, brings up the resistance to defend the rebellion of his Citizen. We are, however, in front of movies that is a symptom and a warning alert, representing the dangers of degeneration of the anarchist permissive society, impotence or even extinction of the state (invoked and programmed by Marxism), which leads first to the Far West, with his marshals and his bandits , then to the jungle and then to homo homini lupus. Who want to understand… (...) "
Well, the to the 2000 men the  judgment, which, however, is only one: this is a great movie