Baron van Hegershuizen is a feared man because of his terrible temper. He insists on having final say in whom his children will marry, and even disowns his son Willy when he goes against his wishes and marries secretary Loes. But when Loes comes to plead Willy's case, the Baron mistakes her for his new housekeeper and takes a liking to the girl. However the same can not be said for the lawyer his daughter Mary wants to marry.