A girl was found dead on the lakeshore and they found an unusually large plastic bag. Another clue is a mysterious blue rabbit hair, which Michael Naseband and Alexandra Rietz puzzles with their new colleagues.

Crime scene bedroom! A dead woman lies half-naked, blindfolded, tied up and strangled on a bed. Flowers and cut hair suggest a serial killer. But then the investigators Alexandra Rietz and Michael Naseband run out of time, because the perpetrator wants to strike again ...

A hostage-taker has holed up in K11. In order to save the life of the seriously injured hostage, Chief Inspector Alexandra Rietz can be exchanged. Then a race against time begins! The investigators only have one hour to comply with the hostage taker's request, otherwise their colleague will die ...

The inspectors Alexandra Rietz and Michael Naseband are called to the station district. A seriously injured 17-year-old was found wearing only his underpants in a backyard. It quickly becomes clear that the boy is a victim of bullying who is harassed by his classmates because of his virginity. But then a new trail leads into the red light district ...

A corpse, charred beyond recognition, is found in the oven of a bakery. The identification of the victim is hardly possible anymore and the commissioners Michael Naseband and Alexandra Rietz investigate in every direction. But the victim apparently took his dark secret with him to the grave ...

Two police officers have disappeared during an operation. When the commissioners Michael Naseband and Daniela Stamm look around the place of the disappearance, they make a gruesome discovery: one of the patrol officers lies dead in the forest. But what about his colleague Lena? Is she still alive? Every minute counts ...

Alex Rietz and her colleague Philipp Stehler are called to an alleged crime scene. A witness claims to have observed how someone is said to have disposed of a corpse in a construction container. But the witness is drunk and instead of a corpse, the inspectors only find a tiny drop of blood.

Suddenly shots are fired at a Turkish wedding! Chief Inspector Michael Naseband and his colleague Daniela Stamm calm the heated situation on site. But then they discover that the bride has disappeared. All witnesses shut up. What is behind the wall of silence and what happened to the young bride?

The investigative team Alexandra Rietz and Michael Naseband have a pretty tricky case to solve. The body of a youth lies on a railroad track. However, the location does not seem to be the real crime scene. The investigation leads the commissioners to illegal underground parties. But who of the countless party guests is the culprit?

Attack with killer viruses! A patient lies dying in the quarantine station because she was infected with an unknown and deadly virus. Shortly before her death, she whispered to the inspectors Alexandra Rietz and Philipp Stehler: “We will all die!” A race against time begins.

Witness dog! A stray dog runs up to the detective, Alexandra Rietz and Philipp Stehler, and it has traces of blood in its fur. The owner has apparently disappeared for days. Traces lead to an association for the deaf and a mysterious lover.

Hit and run in front of the emergency room! An unidentified woman is thrown out of a car in front of the emergency room. The driver flees and the woman is in the intensive care unit in a coma. The commissioners Michael Naseband and Daniela Stamm find out that the woman was poisoned with arsenic and is not the only victim ...

Mysterious corpse find in the forest! A family man is found dead in the forest. He was suffocated, hanged, shot and also staged like a memorial. The commissioners Alexandra Rietz and Philipp Stehler find threatening letters. Now the family of the victim seems to be in the sights of the murderer and is brought to safety. But the perpetrator is more subtle than expected.

A case from the past catches up with Chief Inspector Michael Naseband. The criminal Sven Jäger is shot from a passing car when he is released from prison. The shooter can escape undetected. Naseband is certain that the crime is related to his investigation at the time. Did he make a big mistake years ago?

Emergency call from the bathtub: A frightened young woman reports that a burglar is in her house. When the commissioners Alexandra Rietz and Philipp Stehler arrive, they find the victim injured in the bathroom. There is no trace of the perpetrator. But then someone is targeted that nobody would have expected ...

Kidnapping in Live Stream! A young woman disappears, but then the perpetrator lets the police and the public know via live broadcast how the victim slowly dies of thirst. A trail leads the inspectors Alexandra Rietz and Daniela Stamm to a prisoner in prison. The convicted serial kidnapper seems to know his imitator, but he sets an unusual condition ...

Death by a bow and arrow! Early in the morning a young man in a fancy suit and with an arrow in his back is found dead in a forest. The trail leads to a wedding party who cannot remember anything after the exuberant celebration. Investigators Alexandra Rietz and Philipp Stehler suspect that one of the guests must be the murderer. But how are they supposed to prove that?

A teacher is found murdered at the bathing area in front of an elite boarding school for girls. More than a hundred schoolgirls from a good family who have little respect for the police seem suspect. But the inspectors Alexandra Rietz and Michael Naseband finally prevailed among the pubescent teenagers and gradually uncover a multitude of dark secrets ...

A trap for nasal tape! The commissioners Michael Naseband and Philipp Stehler are called to a dead body. But all they find is a mannequin. The investigators believe that it is a fake emergency call. But suddenly shots are fired and Michael is hit. While the whole K11 is feverishly looking for the shooter, there is little hope for Michael ...

A missing corpse confronts Daniela Stamm and Michael Naseband with an almost unsolvable riddle. Was the body stolen? But who steals a corpse and why?

Arson attack on a family home! At first, everything points to a Insurance fraud out because the owner is close to bankruptcy. then there are at a pizzeria another fire and it becomes clear: a Firestarter is at work. But how can the commissioners and Alexandra Rietz Michael Naseband find the arsonist before he once again strikes?

Mysterious Goodbye! A mother thinks she has seen her missing daughter for three years in a parking lot.

With ripped tights, a young woman is found in the park. The commissioners Daniela trunk and Philipp stealer be switched to elucidate a possible rape. The young woman is seriously injured and does not know what happened. All she remembers is the image of an angel ...

The Commissioners Michael noseband and Philipp stealer prevent a large drug deal with the SEC. But in the run there will be a shootout.

A mother reported her 17-year-old daughter missing. The K11 sends his most experienced investigators: The Chief Commissioners Alex Rietz and Michael Naseband find signs that the daughter has been kidnapped. With great sensitivity succeeds investigators to calm the applied parents. But missing from the girl still any trace ...