Police commissioner Lo Gatto is in charge of the local Italian police station within Vatican State. During an investigation, following the murder of a Vatican priest, he decides to question the Pope! For this reason Lo Gatto is sent to a Sicilian remote island Favignana. There is very little for the commissioner to do on the quiet island, so Lo Gatto decides to investigate the vanishing of a tourist which quickly becomes a very complicated affair.
| Directing | Dino Risi | Director |
| Production | Pio Angeletti | Producer |
| Production | Adriano De Micheli | Producer |
| Camera | Alessandro D'Eva | Director of Photography |
| Writing | Dino Risi | Story |
| Writing | Enrico Vanzina | Screenplay |
| Writing | Dino Risi | Screenplay |
| Sound | Manuel De Sica | Original Music Composer |
| Directing | Massimo Carocci | First Assistant Director |
| Art | Luciano Sagoni | Production Design |
| Costume & Make-Up | Silvio Laurenzi | Costume Design |
| Editing | Alberto Gallitti | Editor |
| Production | Mario D'Alessio | Line Producer |
| Production | Nereo Salustri | Unit Manager |
| Production | Roberto Romoli | Production Secretary |
| Production | Roberto Mezzaroma | Administration |
| Production | Marcello Nusca | Administration |
| Costume & Make-Up | Giulio Natalucci | Makeup Artist |
| Costume & Make-Up | Fausto De Lisio | Hairstylist |
| Directing | Roberto Giandalia | Script Supervisor |
| Camera | Maurizio Calvesi | Camera Operator |
| Art | Stefano Bulgarelli | Assistant Set Decoration |
| Camera | Pietro Clemente | Assistant Camera |
| Editing | Luciana Nusca | Assistant Editor |
| Editing | Viviana Massi | Assistant Editor |
| Camera | Francesco Bellomo | Still Photographer |
| Lighting | Luciano Giammei | Gaffer |
| Camera | Cesare Emidi | Key Grip |
| Sound | Luciano Anzellotti | Foley Artist |
