Das Geheimnis meiner Schwester.

Antonia Wiedemann has built a new life for herself after the painful divorce from her husband Ludwig. In her animal boarding kennel in the countryside, she looks after everything that creeps and flies. Veterinarian Dr. Rafael Hansen even entrusts her with a jumping horse that its owner was about to take to the slaughterhouse. Antonia has a unique instinct for animals, but she prefers to avoid Rafael's cautious advances.