Roberto Biasetti and a friend are unjustly sentenced to sixteen years in prison for murder. The true perpetrator of the crime is a man named Maremmano, who happens to be in the same cell. Released after a partial pardon, he feels indebted to the two men and to Roberto's girlfriend. He returns to prison and confesses his guilt.
| Actor | Role |
|---|---|
 Folco LulliMaremmano | Maremmano |
 Franca Marziostessa | ostessa |
 Franco InterlenghiRoberto Biasetti | Roberto Biasetti |
 Piero LulliRizzieri Chiari | Rizzieri Chiari |
 Mirella UbertiAdele | Adele |
 Lauro Gazzolooste | oste |
 Umberto Spadarocappellano | cappellano |
 Furio MeniconiNot listed | Not listed |
| NNino MarchettiNot listed | Not listed |
 Amedeo TrilliNot listed | Not listed |
 Aldo BettoniNot listed | Not listed |
| AAttilio TorelliNot listed | Not listed |
| EEttore BevilacquaNot listed | Not listed |
| EEgisto PeyreNot listed | Not listed |
| GGiuliano ManciniNot listed | Not listed |
 Enzo MaggioNot listed | Not listed |