A young Vienna-based taxi driver of Turkish origin witnesses an extremely brutal murder. The perpetrator, a serial killer, makes eye contact with her; a deadly game of cat-and-mouse ensues.

The 16-year-old daughter of the highest dignitary in Hüttenberg is found murdered in the disused mine. For the first time, Muck has to deal with a case of this magnitude.

The violent death of his girlfriend Kara throws Chief Inspector Haller completely off track. Haller himself went blind in the incident and was released from duty. However, inconsistencies cause him to investigate the murder of Kara on his own.

Major Vilser is in trouble. First he gets a young Vorarlberg policeman assigned as a sidecar, then his twelve-year-old son Florian is at the door. And Gerlinde Zach from the anti-corruption agency has her eye on him.

Belly sinks further and further down into the depths of a mysterious underwater garden. Above water, she is bullied at school for not speaking the language and already having her period. At home, her mother gives her nothing but tough love. Down below is the only place she feels free. But before she can truly live and breathe in this dark fairy tale realm, she must grow the fins of a mermaid, which requires a very painful sacrifice.

Rural policewoman Andrea wants to end her marriage and become a detective inspector in the city. After a birthday party, her drunken soon-to-be ex-husband runs out in front of her car. In a state of shock, Andrea commits a hit-and-run.

The investigation into the death of a young woman who was drugged with knockout drops and raped leads the Graz duo to Leoben.

A soldier is forced to travel through a dangerous wilderness with his prisoner; a young boy whose presence begins to rekindle his lost humanity.