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.
| Writing | Dario Argento | Story |
| Writing | Dardano Sacchetti | Story |
| Writing | Dario Argento | Screenplay |
| Directing | Dario Argento | Director |
| Visual Effects | Luciano Vittori | Visual Effects |
| Sound | Ennio Morricone | Original Music Composer |
| Camera | Erico Menczer | Director of Photography |
| Production | Salvatore Argento | Producer |
| Production | Carlo Du Bois | Production Accountant |
| Art | Carlo Leva | Production Design |
| Writing | Bryan Edgar Wallace | Screenplay |
| Production | Angelo Iacono | Production Manager |
| Sound | Eugenio Fiori | Boom Operator |
| Directing | Roberto Pariante | Assistant Director |
| Art | Franco Pedacchia | Assistant Production Design |
| Lighting | Carlo Vinciguerra | Electrician |
| Art | Romeo Costantini | Assistant Set Decoration |
| Camera | Renato Mascagno | First Assistant Camera |
| Editing | Cesarina Casini | First Assistant Editor |
| Camera | Maurizio La Monica | Second Assistant Camera |
| Camera | Maurizio Migalizzi | Key Grip |
| Camera | Roberto Brega | Camera Operator |
| Lighting | Alberico Loreti | Best Boy Electric |
| Camera | Giovanni Migalizzi | Grip |
| Lighting | Francesco Rachini | Electrician |
| Costume & Make-Up | Carlo Leva | Costume Design |
| Costume & Make-Up | Pierantonio Mecacci | Makeup Artist |
| Camera | Giuseppe Gabrielli | Grip |
| Costume & Make-Up | Vincenzo Marchetti | Assistant Makeup Artist |
| Sound | Mario Ronchetti | Sound |
| Lighting | Roberto Bertozzi | Electrician |
| Costume & Make-Up | Luca Sabatelli | Costume Design |
| Writing | Luigi Cozzi | Story |
| Costume & Make-Up | Giuseppe Ferranti | Makeup Artist |
| Sound | Romano Pampaloni | Sound Recordist |
| Lighting | Rodolfo Flibotti | Gaffer |
| Sound | Massimo Anzellotti | Sound Effects Editor |
| Camera | Arturo de Castelterlango | First Assistant Camera |
| Camera | Ettore Migalizzi | Grip |
| Camera | Firmino Palmieri | Still Photographer |
| Costume & Make-Up | Maura Turchi | Hairstylist |
| Art | Lamberto Verdenelli | Property Master |
| Sound | Bruno Nicolai | Conductor |
| Art | Luciano Vittori | Title Designer |
| Editing | Sergio Fraticelli | Assistant Editor |
| Production | Carlo Du Bois | Administration |
| Production | Roberta Leoni | Production Secretary |
| Sound | Luciano Anzellotti | Sound Effects |
| Editing | Franco Fraticelli | Editor |
| Production | Giuseppe Mangogna | Production Manager |
