Antonia believes Marc's explanation regarding Laura. Very much in love, they both end up in bed and sleep together for the first time. However, their happiness is disturbed when Olaf bursts into Marc's room. And Antonia's father reacts quite old-fashioned to the clear situation ... Ute gets one of her applications back with the reference to formal deficiencies. Till has the original idea to record a funny application video with Ute. Armin helps them with this. When Till wants to prepare the videos with her for sending, Ute suddenly reacts strangely ... Melanie is in hospital with fish poisoning. The shared apartment-mates lovingly takes care of her. Everyone is very much looking forward to the offspring and hopes that the baby has not been harmed. Bernd wants to prevent Melanie's child from growing up in the shared flat. An ultrasound scan is to be performed in the clinic. Armin happens to be there. The investigation unveils a terrible fact.