Nina and Paul's marriage is over. They are just waiting for an opportunity to teach their son Tim. During a chance encounter, Nina flirts with Viktor, her son's hockey coach, and goes home alone with him. A decision with serious consequences. Nina is almost raped by him, defends herself and kills Viktor in the process. Paul has followed the two and witnesses the accident, which makes a self-defense situation implausible. Agitated, the two drive home without notifying the police.
In a hospital in Hamburg, an unidentified woman is disconnected from the life-support system. While the investigators search for the mysterious perpetrator, two more men are murdered.
The body of Christian Rommedahl, from Denmark, washes up on the Flensburg Fjord. The victim's friend and work colleague, Lasse Jørgensen, is the target of the new investigator duo Svenja Rasmussen and Antoine Haller. Another lead leads the inspector to the Flensburg liquor dealer Philipp Schaaf. There also seems to be a connection between him and the dead. Because photos of Schaaf's daughter Lisa are found on the dead person's cell phone, and Lasse also seems to be involved.
When Eva wakes up, her baby is calm. Too calm. Your child is no longer breathing. Desperate, she massages the little heart. For free. While still in shock, Eva makes a monstrous decision.
Ali, once a promising young boxer from the Romani community and the only daughter of a Romani leader, falls in disgrace when she gives birth to her second child out of wedlock.
Franziska Dreyer and Sebastian Pauli are a happy couple. When one day the police arrest her boyfriend on suspicion of murder, Franziska assumes it's a mistake. But in a trial marked by circumstantial evidence, Sebastian is tried, convicted and sentenced to life. Franziska believes he's innocent and fights to get him released. This puzzles her parents and friends who advise her to cut all ties to him. Her reaction is to marry Sebastian in prison. Then Franziska discovers completely unknown sides to her husband and now doesn't know who or what to believe any more.