Vincenzo 'hunchback' plans a robbery on a armored police van with his gang. Once the job is done, his gang try to kill him and absconds with the loot. Vincenzo hides in the sewers before looking up his friend Monezza who the police later interrogate for his involvement with vincenzo. Meanwhile, Vincenzo is getting revenge on his gang by killing them off one at the time in his various brutal ways.
Tomas Milian
Pino Colizzi
Isa Danieli
Mario Piave
Sal Borgese
Luciano Catenacci
Solvi Stübing
Guido Leontini
Francesco D'Adda
Fulvio Mingozzi
Carlo Gaddi
Alessandra Cardini
Livio Galassi
Pierangelo Civera
Nello Pazzafini
Franco Odoardi
Salvatore Billa
Tom Felleghy
Alba Maiolini
Riccardo Petrazzi
Rosario Borelli
Anna Manduchi
Quinto Gambi
Fortunato Arena
Pietro Innocenzi
Alfredo Quadrelli