Alain en Marie verhuizen naar hun droomhuis in een rustige buitenwijk. Hun makelaar had hen vooraf gewaarschuwd dat de kelder hun levens voorgoed kan veranderen. Op een dag ontdekt het koppel in die kelder een mysterieuze tunnel.
Nee, helaas is Incroyable mais vrai nog niet beschikbaar op Netflix in Nederland.
| Writing | Quentin Dupieux | Screenplay |
| Camera | Quentin Dupieux | Director of Photography |
| Editing | Quentin Dupieux | Editor |
| Costume & Make-Up | Isabelle Pannetier | Costume Designer |
| Production | Thomas Verhaeghe | Producer |
| Production | Olivier Père | Co-Producer |
| Production | Philippe Logie | Associate Producer |
| Sound | Martin Caraux | Music Supervisor |
| Production | Marine Albert | Casting |
| Costume & Make-Up | Romain Marietti | Key Hair Stylist |
| Costume & Make-Up | Dorothée Soual | Wigmaker |
| Costume & Make-Up | Céline Vh | Hairstylist |
| Production | Stéphane Avenard | Unit Production Manager |
| Production | Antoine Boulay | Assistant Unit Manager |
| Crew | Abraham Goldblat | Post-Production Manager |
| Production | Arnaud Tournaire | Production Manager |
| Directing | Anne Juin | Third Assistant Director |
| Directing | Benoit Seiller | Second Assistant Director |
| Art | Suzanne Arhex | Painter |
| Art | Hugo Dubus | Assistant Art Director |
| Art | Simon Tric | Property Master |
| Sound | Régis Boussin | Sound |
| Sound | Antoine Citrinot | Sound Editor |
| Sound | Charles de Ville | Sound Editor |
| Sound | Guillaume Le Braz | Sound |
| Sound | Charles Michaud | Sound |
| Sound | Gadou Naudin | Foley Artist |
| Sound | Alexis Place | Sound Editor |
| Crew | Paul Bourcart | Weapons Master |
| Crew | Frédéric Vallet | Stunt Coordinator |
| Camera | Axel Auger | Grip |
| Lighting | Mickaël Bonnet | Lighting Technician |
| Camera | Lucie Colombié | First Assistant Camera |
| Lighting | Renaud Garnier | Gaffer |
| Camera | Hugo Manuelli | Additional Grip |
| Production | Agathe Preljocaj | Extras Casting |
| Costume & Make-Up | Constance Allain | Additional Wardrobe Assistant |
| Costume & Make-Up | Elfie Carlier | Costumer |
| Costume & Make-Up | Manon Lancerotto | Wardrobe Master |
| Editing | Jean-Louis Guichaoua | Assistant Editor |
| Editing | Fabien Napoli | Colorist |
| Costume & Make-Up | Olivier Afonso | Special Effects Makeup Artist |
| Costume & Make-Up | Pierre Emmanuel Kass | Special Effects Makeup Artist |
| Costume & Make-Up | Anthony Jagu | Hairstylist |
| Costume & Make-Up | Alexandra Moulié | Special Effects Makeup Artist |
| Directing | Quentin Dupieux | Director |
