Alexandra Springer, the junior manager of a large winery, is stabbed to death in the vineyards. Her father Claus, her brother Andre and her fiancé Julian are in shock. Kelting assigns AC and Kilian's deputy Robin to the investigation.
Ulla Nowak lies dead in the police archives. Kilian reports that he overheard a heated argument between Marc's father Justus and Ulla the night before. The suspicion arises that Justus bought Ulla's testimony in an earlier murder case.
After swimming training, the police students discover a body in the pool. It is Dr. Jan Carstens, a renowned sports doctor who was supposed to supervise a competition. The coach of a visiting team becomes the target of the investigation.
Jens Wehrberg is shot dead in his convertible on the street. Marek Roth witnessed the crime right in front of his restaurant. The murder weapon was a drone. It becomes clear that Marek's restaurant was the target of the drone attack.
Moritz Zeisig is pierced by a crossbow arrow in the courtyard of his co-working office. Suspicion falls on the bizarre medieval freak Matthias Luther. Kilian and Kelting want to arrest him, but he is nowhere to be found.
The profile of influencer Iggy Malone is causing horror: she is lying lifeless on a couch in a bloody dress. Was she brutally murdered? Leonie, who was hired as Iggy's bodyguard, is taking part in the investigation.
The body of Alim Fahmy is found in a parcel delivery van. The parcel driver had only come to Germany a few months ago in the hope of a better life. Parcels that have not yet been delivered are missing.
Dietmar Zingst, the "grandfather of the right-wing scene in Halle", is found dead in his hospital bed in the morning. A letter on the bedside table incriminates his nurse. The autopsy shows that Zingst was poisoned.
A man is beaten to death at a bar in the LGBT scene. It is Stefan Brenner, who lived as a woman just a few years ago. News of the transgender man's death quickly lands on the internet and suggests that the act was motivated by transphobia.
Pascal Thirty staggers across the street and falls dead. A puncture mark on the neck indicates poisoning. Pascal was a gambler and lived off the expense of his girlfriend Jackie, who, like her colleague Linh, comes under suspicion.
Kilian is taken by surprise when his half-brother Yannik pays him a completely unannounced visit on campus that evening. Yannik has a treacherous plan. He was tricked by two dealers during a drug delivery and lost a lot of money.
Inka suspects that Sofia cannot be Alessio's biological mother because of her liver transplant. Battiato wants to secretly bring his sister to safety. She is supposed to travel to Italy before the child is taken away from her.