Stephan and Eduardo, a german architect and a spanish artist, met randomly a couple of years ago. Now they are living and working together in Berlin-Kreuzberg, producing art objects out of cardboard. They are good friends and working partners. On first sight, their cosy maisonette flat seems to be a typical Berlin-flat share. But once I walked up the stairs to their studio and office room, their professional artistic collaboration became apparent. Both of them told me vividly about their past, present and future projects and their lifes in Berlin.