The film is one of the most experimental in Murer's filmography. Most people think that movies are expressed through the image (sight) and sound (hearing). Almost as if he is trying to undermine this assumption, Murer himself wears special goggles to blind himself while filming in order to detect his object by sound rather than relying on his eyes. Filming took place in 1968 on the longest day of the year, stretching from 5 a.m. to 10 p.m. The assistants control the focus and the zoom lens and documents Murer's action as he shoots. This unique experiment is not only a critique of media and communication that prioritizes vision, it can also be seen as a filmic experiment that portrays the gap that lies between sound and film.