The Flensburg vocational school is in a crisis mood: unless a miracle happens at the open day, the gastronomy class is threatened with extinction! Principal Katharina and her teaching staff have to come up with an idea to get the necessary registrations. What could be more obvious than relying on the show talent of guest lecturer Erik? The food blogger's idea of processing a beef from head to tail promises to be a live spectacle. However, the free spirit goes it alone. Without consulting the structured director, he invites her sister, celebrity chef Antje Beringer, to be his star guest! Now Katharina, who has broken up with her, has to face an involuntary reunion.