During the annual Christmas gathering at the family home, the parents surprise their children by announcing their decision to move in with one of them and pass on the house.
Unfortunately the movie Dearest Relatives, Poisonous Relations is not yet available on HBO Max.
| Camera | Tani Canevari | Steadicam Operator |
| Directing | Mario Monicelli | Director |
| Writing | Suso Cecchi d'Amico | Screenplay |
| Production | Francesco Anniballi | Production Secretary |
| Directing | Anna Antonelli | Second Assistant Director |
| Camera | Lorenzo Tovoli | Second Assistant Camera |
| Sound | Alfredo Petti | Boom Operator |
| Editing | Ruggero Mastroianni | Editor |
| Writing | Piero De Bernardi | Screenplay |
| Camera | Franco Di Giacomo | Director of Photography |
| Costume & Make-Up | Lina Nerli Taviani | Costume Design |
| Costume & Make-Up | Maurizio Silvi | Makeup Artist |
| Production | Amanzio Todini | Casting |
| Camera | Roberto Brega | Camera Operator |
| Camera | Vincenzo Marinese | Assistant Camera |
| Camera | Francesca D'Antoni | Second Assistant Camera |
| Art | Livia Del Priore | Assistant Production Design |
| Production | Bruno Ridolfi | Production Coordinator |
| Production | Paolo Venditti | Production Supervisor |
| Camera | Stefano Coletta | Camera Operator |
| Writing | Carmine Amoroso | Story |
| Writing | Carmine Amoroso | Screenplay |
| Production | Daniele Bellucci | Production Secretary |
| Directing | Stefano Chiezzi | Script Supervisor |
| Sound | Mario Dallimonti | Sound |
| Lighting | Valerio Garzia | Gaffer |
| Camera | Mauro Anzelotti | Key Grip |
| Camera | Guido Chimatti | Assistant Camera |
| Costume & Make-Up | Marina Marin | Assistant Hairstylist |
| Editing | Rita Polidori | Assistant Editor |
| Sound | Danilo Sterbini | Sound Mixer |
| Sound | Rudy De Cesaris | Music |
| Writing | Mario Monicelli | Screenplay |
| Art | Franco Velchi | Production Design |
| Production | Byron Pierotti | Production Secretary |
| Sound | Roberto Petrozzi | Sound |
| Sound | Adriano Di Lorenzo | Boom Operator |
| Camera | Zeno Colantoni | Still Photographer |
| Costume & Make-Up | Maria Rizzo | Hairstylist |
| Costume & Make-Up | Francesco Nardi | Assistant Makeup Artist |
| Costume & Make-Up | Liliana Sotira | Assistant Costume Designer |
| Camera | Gianfranco Salis | Still Photographer |
| Editing | Gasperina Marani | Assistant Editor |
| Art | Franco Velchi | Set Decoration |
| Directing | Amanzio Todini | First Assistant Director |
| Production | Giovanni Di Clemente | Producer |
