Bill's friend Lore is an art student in Berlin. Since her professor doesn't think much of women painters, she decides to swipe a Rafael painting from the gallerie and replaces it with a copy she painted. To make matters worse, some moron has stolen the counterfeit from the museum. Criminal Investigator Keller suspects Bill and Lore are behind the whole thing. But Bill, a gifted quick-change artist, keeps escaping arrest by constantly altering his appearance like a chameleon on steroids.