Marie (Schneider) is een werkende vrouw van in de veertig die doodmoe is van haar saaie bestaan. Dit leidt ertoe dat ze zomaar een affaire begint. Na een tijdje stopt ze ermee en aborteert de ontstane zwangerschap. Lang reflecteert ze over de ontstane situatie en haar leventje in het algemeen.
Nee, helaas is Une Histoire Simple nog niet beschikbaar op Netflix in Nederland.
| Sound | Philippe Sarde | Original Music Composer |
| Camera | Jean Boffety | Director of Photography |
| Editing | Jacqueline Thiédot | Editor |
| Production | Horst Wendlandt | Producer |
| Directing | Claude Sautet | Director |
| Art | Henri Offroy | Set Decoration |
| Sound | Louis Devaivre | Foley Artist |
| Art | Georges Lévy | Production Design |
| Production | Jean-Charles Edeline | Producer |
| Production | Alain Sarde | Producer |
| Costume & Make-Up | Corinne Jorry | Costume Design |
| Costume & Make-Up | Michel Deruelle | Makeup Artist |
| Costume & Make-Up | Jean-Claude Chicot | Hairstylist |
| Production | Claude Berri | Producer |
| Costume & Make-Up | Jean-Max Guérin | Hairstylist |
| Production | Pierre Grunstein | Executive Producer |
| Sound | Vincent Arnardi | Sound Mix Technician |
| Sound | Marie-Thérèse Boiché | Sound Editor |
| Production | Claudine Paringaux | Executive Producer |
| Costume & Make-Up | Andrée Guikovaty | Makeup Artist |
| Sound | Pierre Lenoir | Sound |
| Writing | Claude Sautet | Writer |
| Writing | Jean-Loup Dabadie | Writer |
