Lena is not in the mood for a love affair until she meets Quirin. Lena admires his sense of humor and his creativity. The only thing she does not like is that he is a passionate climber. On a climb, Quirin’s friend Markus falls. Is Quirin responsible for his crash? Lena is shocked but has to care for Markus’ wife Rose and their newly born baby. Markus is in coma and it is unlikely that he is going to wake up very soon. Rosa is desperate and reproaches Quirin to be responsible for the accident. Lena learns that Rosa used to be married to Quirin. She decides to get out of the dicey situation and participates at a training measure. In the meantime, Eva has found a new profession: the production of yoghurt. The whole family is required to take party in this experiment. Lena remains skeptical. She is plagued by doubts about Quirin. Is he trustable?