Margot summons Jennifer and Corinna to her about a rental matter. When Corinna plays a melody on Margot's piano, she is very impressed with it. But then Corinna starts an old hit song and triggers an unexpectedly violent reaction. She does not know she was playing Margot's wedding song ... Melanie collapsed at the party. She is hospitalized with severe food poisoning. Bernd and Chris take care of her touchingly. In the process, Bernd learns that Chris is the father of Melanie's unborn child ... Marc and Antonia are more in love than ever after their reconciliation. Marc wants to sleep with his girlfriend, but Antonia has very romantic ideas about the 'first time'. When Marc has a open house at his place, he invites Antonia. But Laura messes up Marc's plan.