In the fourth season, Sisi challenges the best jockey in Bavaria to a grand horse race to save the family’s estate, Castle Possenhofen, after the death of her father. Back in her homeland, she comes across dark family secrets and ultimately must ask herself where she really feels at home.
Police captain Laure Bertraud returns to work as she and her team begin a complex new investigation after a human torso is discovered in a pile of garbage in the 20th arrondissement in Paris. Meanwhile, a high profile criminal trial tempts ambitious lawyer Joséphine Karlsson, and Judge Roban faces a health crisis. This new season pushes every character to their limit, and forces them all to question long-standing affiliations and beliefs.