McNamara (James Jakone James Cagney) is the general manager of the West Germany branch of Coca-Cola Company. for a long time, he has worked hard for the company silently and achieved record highs. He is a popular man in the eyes of his boss and the most promising employee to be promoted. One day, the boss calls McNamara and informs him that his daughter Scarlett (Pamela Tiffin Pamela Tiffin) is going to visit West Germany, hoping that McNamara can become her guardian. However, McNamara did not expect that Scarlett, despite her young age, was extremely enthusiastic and unrestrained. Not long after she came to West Germany, she fell in love with a man named Otto (Horst Bachholz Horst Buchholz). Not only did they get married, but Scarlett even had Otto's flesh and blood in her womb. To make matters worse, Otto came from East Germany and was a socialist with strong roots. Despise everything about capitalism. At this juncture, McNamara learned that his boss would soon go to West Germany to pick up his daughter.