"Only no men's acquaintances!" shortly before their departure to Oslo, Irene Wiedemann infiltrates her two daughters at Munich airport: Ms. Irene has something against men. The sisters are supposed to make their way to Lake Wörther, where Margit is waiting for a job as a hotel director, and for her younger sister Eva a strict boarding school. However, it will not come to that. As soon as Mama has flown away, Margit is kidnapped by her secret fiancée towards the registrar, while Eva is driving alone towards Lake Wörthersee, where she is now to go to the boarding school - and for her sister - to the hotel office at the same time. Golf hotel owner Eddy Stubenrauch is already eagerly waiting for the new registrar, because his cousin Trude Moll (who neither wants to know about the engagement Margits nor about the music band committed by Eddy) has managed the operation systematically.