This film was shot in Super16mm, but is projected in regular 16mm. As such, a portion of image off screen to the right is reproduced as sound. It is a composition, an arrangement, but not one that is from seeing to hearing, or the other way around, but a composition for both of these senses at the same time. Its point of departure is a Frankenstein-like thought experiment by Emil du Bois-Reymond, wherein he postulated that, if one were to cross the nerves of the eye and the ear where they enter the brain, the eye would hear lightning as a loud boom breaking the silence of the night and the ear would see thunder as a bright flash of light in the darkness.