A photographer Søren Kristiansen, is commissioned by producer Per Hansen to write the script for a porn video to be "realistic". What Hansen does not know is that Søren is in a relationship with Hansen's daughter Mette, and that it is her suggestion that the story be a direct description of her parents' sex life.
- Release Date: October 11, 1974
- Runtime: 85 minutes
- Production countries: Denmark, Sweden
- Original Title: Nøglehullet
- Original Language: dansk (Danish)
Genres: Comedy
Actors: Bent Warburg, Marie Ekorre, Torben Larsen, Max Horn, Dorte Jensen