The work consists of a LCD" screen inserted vertically into a picture frame, while the interaction with the person in front of it is determined by a motion able to catch the approaching of a person. The image of a part of a body (a breathing thorax or a back) is projected on the screen, and the interaction, that is the approaching of the observer, causes a transuding of blood from the body on the screen (or other metamorphosis; for example: man to woman).
The transuding blood increases as the observer approaches: approaching, knowing another person, "costs" in terms of blood.
