Carlo, een naïeve kelner, woont in een flat net boven de bank die een professor en zijn medeplichtigen van plan zijn te beroven. De bende is vooral geïnteresseerd in een zeer zeldzame ring en in het gedeponeerde geld. De dieven moeten echter van tactiek veranderen wanneer Carlo totaal onverwacht naar huis terugkeert. Carlo wordt ontvoerd door de bandieten, maar de politie denkt dat hij een medeplichtige is.
Nee, helaas is Spia spione nog niet beschikbaar op Netflix in Nederland.
| Writing | Jaime Jesús Balcázar | Story |
| Camera | Fausto Rossi | Director of Photography |
| Directing | Bruno Corbucci | Director |
| Camera | Juan Gelpí | Director of Photography |
| Editing | Franco Attenni | Supervising Editor |
| Production | Oreste Coltellacci | Producer |
| Production | Romualdo Buzzanca | Production Secretary |
| Camera | Mario Pastorini | Assistant Camera |
| Writing | Bruno Corbucci | Screenplay |
| Sound | Bruno Canfora | Conductor |
| Sound | Federico Martínez Tudó | Original Music Composer |
| Sound | Mario Ronchetti | Sound |
| Sound | Eugenio Fiori | Boom Operator |
| Costume & Make-Up | Adriana Cassini | Hairstylist |
| Directing | Filiberto Fiaschi | First Assistant Director |
| Writing | Vittorio Vighi | Screenplay |
| Production | Enrique Beltram | Unit Manager |
| Production | Alberto Giommarelli | Unit Manager |
| Production | Enzo Ippolito | Unit Manager |
| Camera | José Climent | Camera Operator |
| Production | Valentín Sallent | Line Producer |
| Writing | Mario Guerra | Screenplay |
| Directing | Federico Canudas | First Assistant Director |
| Editing | Teresa Alcocer | Editor |
| Production | Livio Maffei | Production Manager |
| Camera | Giovanni Ciarlo | Camera Operator |
| Art | Giuseppe Cesare Monello | Assistant Set Decoration |
| Camera | Carlo Tafani | Assistant Camera |
| Costume & Make-Up | Mario Giorsi | Costume Design |
| Art | Nedo Azzini | Set Decoration |
| Camera | Enrico Appetito | Still Photographer |
| Art | Juan Alberto Soler | Production Design |
| Costume & Make-Up | Andrea Riva | Makeup Artist |
