In 2004, a urinal was voted the most influential work of modern art. Famous artist and provocateur Marcel Duchamp claimed to have made the Fountain—or rather, to have bought and signed a mass-produced product. But according to some, the lesser-known, flamboyant Dada artist Baroness Elsa von Freytag-Loringhoven should be recognized for turning this much-discussed porcelain pisspot into art. Film-maker Visser tells the absurd story of this iconic work, with no certainty about whether the original still exists. A search for the truth and a reflection on what makes art art.