When investigative journalist Imke Leopold asks Thorsten Falke for help in uncovering a supposedly illegal real estate deal on Norderney, he initially reacts with skepticism. Shortly afterward, when Imke becomes the victim of an attack she survives only by sheer luck, Falke regrets his hesitation and asks Julia Grosz to join him in investigating on the island. Is the attack connected to a large-scale construction project that was approved by some local politicians on the island? Unfortunately, the island-based lawyer and real estate agent who brokered the deal and hinted at it to Imke is no longer available as an informant – Falke and Grosz find him murdered in his house…

The brutal murder of a young woman sends Borowski down a darknet rabbit hole filled with incels and fearmongering.

An anonymous call leads Eisner and Fellner to investigate the murder of a woman and the disappearance of a child.

Eighteen-year-old student Jessi has a date. But not at a disco; she heads to the nearby woods on the outskirts of town. A short time later, she's dead. First, a carbon arrow hits her in the thigh, then a knife stabs her in the heart. When a jogger finds the body the next day, it shows bite marks and has a twig in its mouth. The Saarland investigative team, led by Chief Inspectors Leo Hölzer (Vladimir Burlakov) and Adam Schürk (Daniel Sträßer), is faced with a mystery, as the twig in the mouth points to an old hunting custom. Is this a ritualistic crime?

Eisner and Fellner investigate the death of a senior official from the Interior Ministry.

Susanne Elvan hat ihren Mann Tarek, einen verurteilten Gewaltverbrecher, über ein Brieffreundschafts-Portal während dessen Haft kennengelernt. Die Hochzeit fand noch vor seiner Entlassung statt. Als Susanne ermordet aufgefunden wird, ist Tarek erst seit kurzem wieder auf freiem Fuß. Der Fall scheint klar. Doch als Assistent Norbert Jütte sieht, dass der Mörder seinem Opfer einen Gürtel über die Augen gebunden hat, bekommt der Fall eine unerwartete Wendung: Jütte ist überzeugt, dass er schon einmal mit dem Mörder zu tun hatte …

A prison riot sees Kai Korthais, murderous psychopath from Borowski's past, escape from jail.

At a gas station in Mainz, the attendant is shot dead – the second robbery in two weeks, and this time a fatal one. The only witness to the crime is Rosa Münch, a blind law student who still lives with her parents and longs for a life free from her father's overprotective control. Ellen Berlinger and Martin Rascher investigate, following the trail of the two perpetrators and the clues provided by the blind woman: the scent of an expensive perfume, the voices of suspects, and details Rosa heard and felt at the crime scene. The detectives want to place the vulnerable Rosa under police protection, but the young woman refuses. On the contrary, when a young woman whose voice sounds familiar tries to contact her, she keeps it to herself. Ellen Berlinger and Martin Rascher suspect that Rosa knows more than she's letting on. The investigators must continue their work without her support and resort to unconventional methods to prevent further deaths.

A private rendezvous in Hamburg turns into a nightmare after Lindholm is accused of murdering her date.