Starting from the assumption that there is no such thing as an abstract photograph, because every single one has a direct connection to its referent on the physical world, these series of images propose to operate a game: at the same time they search for an identification and they escape from it. We know they are representing a thing, but the image is ambivalent about that thing. They have a disturbed relation with codes and to what they look like. These hypothesis-images, an accumulation of movement and duration, synthesized by the mechanical eye of the photographic camera, exist only as a theoretical possibility in the world of objects. As a visual essay, lending it’s name from Heidegger’s famous course “Die Frage nach dem Ding”, the images are more interested on the question - What is a thing? - than on its answers.