A Russian emigre prides himself on the way he's molded himself into a real Yankee in the USA, though the world he lives in, New York's Lower East Side in the late 19th century, is almost exclusively populated by other Jewish immigrants. When his wife finally arrives in the New World, however, she has a lot of assimilating to do.

Berlin, 1930, during the rise of Nazism. Hermann Hermann, a Russian emigrant and chocolate manufacturer, married to the capricious Lydia, loses his temper more and more every day when dealing with his workers and other businessmen; until he meets Felix, a vagrant, who seems to be physically identical to him; a disconcerting fact that leads Hermann Hermann to plot a particular way out of a fake world he actually hates.