Three young Georgians have to clean a castle in Berlin, where a German arms manufacturer's art collection is being set up for an exhibition. Of course, the proletariat isn't welcome at the opening party and they are banished to a servants' room in the attic. Downstairs, however, a splendid buffet attracts them - so why not just ignore the unfair prohibition and cross the line of class society? Didn't the French Revolution start over a piece of cake?

The story of the dog from the title, who in a frame narrative explains how he came to be transformed from an unemployed communist filmmaker into a canine with a philosophical bent. Unable to finance his new project, young Berlin-based director Julian tells foreign exchange student Camille that his job in the countryside is research for an upcoming film. When Camille offers to help, he is forced to uphold the lie. The plantation isn’t the proletarian idyll he had hoped for, but fortunately the reincarnation of Francis of Assisi provides spiritual insight and a new aim in life.