The participants do not know, what the others are hearing. The programs ask them to perform small gestures, that differ slightly from those of the others - until everybody is involved in a collective production. Making use of wool spools, that are spread out everywhere in the room, they commence with a project, that was already begun before they were there: drawing red threads all through the space. With every performance the fabric of threads gets tighter. After a week with several performances each day it is nearly impenetrable. With every move they make, the visitors change the space and the way it can be experienced.