To their big surprise, the capable waitress Gundula Kirchner receives from the estate owner Xaver Schönborn the offer to manage his stud as managing director. Gundula, who has some qualifications, seizes the opportunity and has the business under control after only a short time. But Xavers spoiled daughter Helen and especially the ambitious, but incompetent son-in-law René try by all means to drive the dedicated Gundula from the court. No one, least of all Gundula herself, suspects that Xaver is really her father.
The mayor would like to snatch the Moosburg Castle under the nail so that he can move his club "Paradies" and the "Damen" there. But the Reverend has other plans: he wants to build a children's home in the castle. Only the rightful heir, the young pediatrician Dr. Seefellner can help him.
