Vincenzo Esposito is a street sweeper who stands out for his honesty and innocence. The same cannot be said of his superior, "Corporal" Pascuttella, who schemes behind his back because he has his eye on Vincenzo’s wife, an old flame of his. A colleague reveals the whole affair to Vincenzo, who then finds himself forced to seek revenge for the wrong done to him... but luckily, someone else steps in to deliver justice.