Because her unconventional manner always causes offense, the always good-humoured Sister Anna is ordered to only deal with the financial affairs of her Protestant deaconry in future. Her first assignment takes her to a village near Munich to sell an inn that has been bequeathed to the deaconry. However, the "Weißblauer Engel" is actually a brothel. When Anna learns that the entire village is to be turned into an amusement park, she joins forces with the cheerful ladies of the "Weißlauer Engel" to fight the building tycoon.