Der Kreislauf depicts a unique game that is played on Belgium's beaches in the summer months. When the weather is good, one can find colorful flowers for sale in small, impromptu-build shops. These flower 'pop-up' shops have been open for business on the beaches of Belgium since the late 1920s. But these flowers hate being watered or rained on, as they are made of paper. Der Kreislauf takes an intimate look at the young players.