Hanna Riedle has only just moved away from her Swabian village and started a new life in the city when she becomes the victim of a violent crime. During their investigation, Stuttgart detectives Lannert and Bootz discover that Hanna has left her family and friends in a dispute.

The undercover investigator Robert is supposed to win the trust of a criminal through a fictitious relationship with Leni. However, the feelings are not just a game. It is the spied criminal, of all people, who makes him confront his contradictory feelings…

An overwhelmed young mother, her hard-working boyfriend and her lonely sister are trapped in their daily routine and social conventions, until one of them breaks out of her role and turns everything upside down.