Composer Tina "Tina 303" Gruensteidl incorporated her own experiences as a long-time tinnitus sufferer into the score.
Many of the plot elements and experiments are borrowed from director/writer Johannes Grenzfurthner's own sense of revulsion. For example, up until the beginning of the shoot, he had a bottomless aversion to slugs. After keeping any number of them in a terrarium for over two months and having to feed and care for them every day, however, that feeling quickly subsided. After four days they all had names, and it was no longer a problem to let them crawl over his hand.
The story takes place in early summer 2019 in a house in Apopka, Florida, but the film was shot in an apartment in Vienna, Austria.
Grenzfurthner says that he had to be very careful with the props in order to be able to plausibly show the illusion of American averageness. That's why he brought a whole suitcase of everyday objects from Florida to Austria, from water bottles to rulers, from algae powder to scalpels.
Director/writer Johannes Grenzfurthner has always been fascinated by visual magnification. As an origin of this fascination, he cites an episode of the British series UFO that he watched when he was a kid. The organization S.H.A.D.O. manages to take photos of the alien planet by a space probe. However, due to a defect, the size information is not transmitted. The scientist in charge is horrified because the photos are completely useless without dimensions. To make this clear, he shows blow-ups of everyday objects, which look completely bizarre and are not recognized.