In het Terzi Instituut voor genetisch onderzoek wordt ingebroken en de bewaker neergeslagen, maar niemand kan ontdekken of er iets gestolen is. Eén medewerker weet echter meer, maar is al gauw zijn leven niet meer zeker. De blinde Franco Arno (Karl Malden), die met het weesmeisje Lori tegenover het instituut woont, meent al eerder een verdacht gesprek te hebben opgevangen en meldt zich bij de sluwe reporter Giordani (James Franciscus) wanneer hij verneemt dat een medewerker voor de trein is gesprongen en daar een foto van is gemaakt...
Nee, helaas is Il gatto a nove code nog niet beschikbaar op Netflix in Nederland.
| Directing | Dario Argento | Director |
| Writing | Dario Argento | Story |
| Writing | Dardano Sacchetti | Story |
| Writing | Dario Argento | Screenplay |
| Visual Effects | Luciano Vittori | Visual Effects |
| Sound | Ennio Morricone | Original Music Composer |
| Production | Salvatore Argento | Producer |
| Camera | Erico Menczer | Director of Photography |
| Production | Carlo Du Bois | Production Accountant |
| Writing | Luigi Cozzi | Story |
| Writing | Bryan Edgar Wallace | Screenplay |
| Art | Carlo Leva | Production Design |
| Costume & Make-Up | Carlo Leva | Costume Design |
| Costume & Make-Up | Luca Sabatelli | Costume Design |
| Costume & Make-Up | Giuseppe Ferranti | Makeup Artist |
| Costume & Make-Up | Vincenzo Marchetti | Assistant Makeup Artist |
| Costume & Make-Up | Pierantonio Mecacci | Makeup Artist |
| Costume & Make-Up | Maura Turchi | Hairstylist |
| Production | Angelo Iacono | Production Manager |
| Directing | Roberto Pariante | Assistant Director |
| Art | Romeo Costantini | Assistant Set Decoration |
| Art | Franco Pedacchia | Assistant Production Design |
| Art | Lamberto Verdenelli | Property Master |
| Sound | Eugenio Fiori | Boom Operator |
| Sound | Romano Pampaloni | Sound Recordist |
| Sound | Mario Ronchetti | Sound |
| Sound | Massimo Anzellotti | Sound Effects Editor |
| Lighting | Roberto Bertozzi | Electrician |
| Camera | Roberto Brega | Camera Operator |
| Camera | Arturo de Castelterlango | First Assistant Camera |
| Lighting | Rodolfo Flibotti | Gaffer |
| Camera | Giuseppe Gabrielli | Grip |
| Camera | Maurizio La Monica | Second Assistant Camera |
| Lighting | Alberico Loreti | Best Boy Electric |
| Camera | Renato Mascagno | First Assistant Camera |
| Camera | Ettore Migalizzi | Grip |
| Camera | Giovanni Migalizzi | Grip |
| Camera | Maurizio Migalizzi | Key Grip |
| Camera | Firmino Palmieri | Still Photographer |
| Lighting | Francesco Rachini | Electrician |
| Lighting | Carlo Vinciguerra | Electrician |
| Editing | Cesarina Casini | First Assistant Editor |
| Editing | Sergio Fraticelli | Assistant Editor |
| Sound | Bruno Nicolai | Conductor |
| Production | Carlo Du Bois | Administration |
| Production | Roberta Leoni | Production Secretary |
| Art | Luciano Vittori | Title Designer |
| Sound | Luciano Anzellotti | Sound Effects |
| Editing | Franco Fraticelli | Editor |
| Production | Giuseppe Mangogna | Production Manager |
