The abused body of a young woman is found on a wasteland near a popular Kiel club. The video surveillance of the club will soon provide Klaus Borowski (Axel Milberg) and Mila Sahin (Almila Bagriacik) with a suspect: Mario Lohse (Joseph Bundschuh). The shy-looking outsider regularly watches women's contemptuous videos in the internet forum of the so-called „ Pick-Up Artist “ Hank Massmann (Arnd Klawitter). Since Lohse has no valid alibi, Borowski and Sahin decide to temporarily arrest him.
A kiosk operator in Ludwigshafen is brutally slain. It looks like robbery - if it weren't for coins in the dead man's windpipe. A signal for Lena Odenthal and Johanna Stern that there could be a private motive for the deed. Her investigations are focused on two customers of the kiosk. Anton Maler looks charming, takes care of his sick ex-girlfriend and is so overly accommodating to the inspectors that he looks suspicious again. Jannik Berg, on the other hand, was not only seen with the possible murder weapon, he tried to evade the police officers and sowed distrust of Anton Maler. Witnesses and suspects who lie and gloss over are nothing new to Lena Odenthal and Johanna Stern. This time, however, they have the impression that they are supposed to be manipulated beyond the usual extent.
Five-year-old Mike has disappeared. For three days, his separated parents think their son is with each other, until their mistake is discovered. Now the mother angrily suspects the father, the father the mother. But where is Mike really?
Alarm in Kiel: In an uprising in the forensic clinic, the woman killer Kai Korthals manages to escape from security custody. Korthals, who crept and killed numerous women in their homes, became Borowski's personal nightmare six years ago when he kidnapped his fiancée Frieda Jung.
The investigation into a murder case leads the Munich detectives Ivo Batic and Franz Leitmayr to Dannerberg in the foothills of the Alps. The deceased had most recently worked as an auditor in a nunnery there. However, the God-fearing life only seems tranquil at first glance. Evidence quickly mounts that the monastery's caretaker is involved in the crime. But what is the motive? Were there irregularities in the books that the auditor threatened to uncover? No less irritating are two envoys from Rome who are conducting their own investigations in parallel to Batic and Leitmayr. Are the nuns trying to cover up their own misdeeds? And are there other wondrous secrets lurking behind the monastery walls?
