Fred Stromberg is a professional son whose path in life is already mapped out: He is to take over his father's business, marry his longtime girlfriend and provide for offspring. A business trip to Cologne changes Fred's life. After an assault, he wakes up in hospital and can't remember anything, not even his name. The Turkish nurse Sezen takes care of the amnesiac. While searching for his identity, the two grow closer. But their young happiness is in danger.