Mr MacNamara, director of Coca Cola in the West Berlin, is told by his general director that his daughter Rossella is coming and will stay in Berlin with Mr MacNamara and his wife for a couple of weeks. The girl will end up staying a couple of months, and when her parents come to take her, she disappear, creating troubles for MacNamara. The man finds the girl, but also finds out that she got secretly married to an unbearable communist man of East Berlin and that the two are about to leave for Moscow. An irresistible comedy which launch an invective against Communism and Capitalism.