Released from jail, Nanni (Checchi) punches prison guard Stefano (Ninchi) who has
denounced him. In order to take revenge, Stefano suggests the suspicion that, during his
absence, his wife has had business with the Count Paolo (Rimoldi). A few days later, at
night, a deadly ambush will be prepared.
Based on the novel The Trap (1928) by Toscan Delfino Cinelli.