When strange, supernatural murders suddenly become the talk a peaceful town, two detectives must solve a deadly game, but will the myth of this game reveal secrets too close to home.

Maria Nikolai was once a celebrated musician. 20 years ago she came to Hamburg with her husband, who has since died. But her neighborhood, which used to be a neighborly neighborhood, is gradually threatening to turn into a social hotspot: the streets are dirty, young people are killing time in front of the supermarket and alcohol is a constant companion for many. Foreigners have also been increasingly moving to the district for some time.

Dr. Martha Nichols is called to an emergency and arrives just in time: her own daughter Paula wants to jump off the bridge

Arne comes into the family of an old friend of his father as a foster child. He hopes to find closeness and security with Harald, his wife Elsa and their children Hans, Wiebke and Lars. But he finds it difficult to integrate - his trust in the community has been shaken by his great misfortune. However, he feels attracted to Wiebke, even though she keeps distancing herself from him. After Arne's clumsiness causes the sailing boat that the young people had restored together to be wrecked during the launch and he is supposedly a traitor after a joint theft, a rift occurs with Wiebke and her brothers. Harald is also deeply disappointed in his foster son.

The happy gay couple David and Khaled would love to marry publicly - if there weren't Khaled's homophobic father Faisal, David's pseudo orthodox Jewish acting mother Lea and a possible paternity and gallery insolvency.

A corpse is found in the Bay of Wilhelmshaven. It soon becomes clear that the dead man was an officer in the Dutch KFOR troops in Kosovo. During his investigation, Chief Inspector Holzer meets sailing instructor Michael Kühnert and his deaf wife Elena. Their way of communicating with each other and their daughter Sabin in sign language arouses his interest. Although Kühnert admits that he used to be a KSK soldier in Kosovo and met Elena there, neither of them claim to know the deceased. Holzer is certain that they are hiding something from him.

After his brother committed a terrible crime, David was forced to leave his hometown with his family. Four years later, he comes back for the first time and runs into Mira, the love of his youth. To find himself, he unites with her as they try to win back a slice of their adolescence.

Although he already has searched Iraq unsuccessfully for weapons of mass destruction as a member of a UN mission, German bio-weapons expert Arndt Wolf is still obsessed with the idea that Saddam Hussein is hiding something. Nobody around him is interested in this topic any more. This changes abruptly when an Iraqi asylum seeker claims to have been involved in the manufacture of chemical weapons. The German Federal Intelligence Service summons Dr. Wolf to ascertain the legitimacy of the claims made by the informant, who has been given the code name “Curveball”.

Summer 1939. Influential families in Nazi Germany have sent their daughters to a finishing school in an English seaside town to learn the language and be ambassadors for a future looking National Socialist. A teacher there sees what is coming and is trying to raise the alarm. But the authorities believe he is the problem.

Pelin, a young single mother from the problem neighborhood of Berlin-Wedding, is sent with her three children by different fathers of different nationalities - Robby (seven), Elvis (four) and Roxanne (ten months) - to a mother-child cure in a scenic, paradisiacal spa resort in northern Germany. The cure is intended to give Pelin, who is constantly on a collision course with the youth welfare office and family court, time to reflect and recover physically and mentally.