Little Luigi, the son of Guido and Elena, has a strange illness. To save him, they must inject his blood into a healthy person with his same blood type in order to create antibodies the fight off the infection.
| Directing | Mario Costa | Director |
| Writing | Giorgio Capitani | Writer |
| Writing | Antonio Leonviola | Writer |
| Writing | Anton Giulio Majano | Writer |
| Writing | Guido Malatesta | Writer |
| Production | Giovanni Cosimini | Producer |
| Sound | Renzo Rossellini | Original Music Composer |
| Camera | Anchise Brizzi | Director of Photography |
| Editing | Otello Colangeli | Editor |
| Art | Lamberto Giovagnoli | Art Direction |