Mogens Wieth is a songwriter who lives beyond his means. He is expecting to inherit a fortune from his Aunt Tut in Paris, who is old and filthy rich. He has been corresponding with her for many years. In reality, Aunt Tut is dead, and it is her daughter who writes the letters. A young singer who wants to ingratiate himself with the songwriter claims that he knows the aunt and that she is coming to Copenhagen. He has persuaded an older actress to play the role of Aunt Tut. Unfortunately, the aunt's charming daughter also arrives in Copenhagen at the same time, setting the stage for costly episodes and amusing complications...
