A hermit who has had contact with terrorists is planning to kill the Pope by poisoning.
| Actor | Role |
|---|---|
 Terence StampPadre Andreani, poi Papa Giovanni Clemente I | Padre Andreani, poi Papa Giovanni Clemente I |
 Fabrizio BentivoglioPadre Bruno Martello | Padre Bruno Martello |
| PPaula MolinaNina | Nina |
 Gabriele FerzettiCardinale Ixaguirre | Cardinale Ixaguirre |
 José Luis López VázquezDon Perrone | Don Perrone |
 Antonio MarsinaVittorio | Vittorio |
 Adriano Amidei MiglianoDottore | Dottore |
 Eduardo FajardoRettore | Rettore |
 Frank NuyenCardinal (uncredited) | Cardinal (uncredited) |
 Adriana ColomboNot listed | Not listed |