Oliver, former European champion in the decathlon, came out after the end of his sporting career and divorced his wife Carolin. Since then he has had little connection to his 15-year-old daughter Alma. Oliver now lives in Hamburg with Felix, the owner of an outdoor shop. When Oliver's ex-wife dies after a car accident, Alma moves in with them at the request of her aunt Franziska. Full of mistrust of her homosexual father, the traumatized girl tries to initiate conflicts between Oliver and Felix and to break them up. Alma's friend Johannes also has reservations about gays. His family provides Alma with emotional support. Because Felix also shows a lot of understanding for Alma's needs, Oliver gets caught between the fronts.
Mia and her partner Benny, along with Mia's sister, Alicia, will be in charge of solving some puzzling cases that are happening in their city Hamburg. Surrounded by ghosts and mysterious characters this group of friends, accompanied by other young people, follow their clues.