When the sons of farmer Thomas and his wife Therese Stangassinger, Toni and Sepp, introduce their fiancées to their parents, the latter cannot believe their eyes. Independently of each other, the parents try to prevent the wedding by any means necessary.
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.
