Behind the dike, everything is in order. There stands the Portugeser, the first brothel behind the dike, where the charming Luisa rules with an iron hand, great care, and plenty of liquor. When the professor returns home from captivity, he has only one goal: to restore his hormonal balance at the Portugeser. However, charming Luisa believes it is time for him to climb the social ladder and become an honorable citizen. And what charming Luisa sets her mind to, she accomplishes. Thus, the professor must reluctantly bid farewell to wine, women, and song.