Nina and Mark wish for years in vain a child. An adoption is out of the question for them, they would like to have their "own" child. There seems to be only one solution left for her: a surrogate mother in India. A business model that specific physicians and clinics specialize in the field. Euphorically, Nina and Mark travel to their foreign country. Everything seems perfect at first, the doctor Kamalika acts competent and in the young Shanti they quickly find the right surrogate mother for their desired baby. But in the nine months to the birth they begin to wonder if the decision was right.

"An eye for an eye, a tooth for a tooth" is the life motto of 30-year-old Agnieszka. After serving five years in prison, Agnieszka flees Poland for Germany in an attempt to start over. In Munich she meets the lonely 70-year-old Madame, boss of an escort agency. The woman provides her with a refuge and a job: Agnieszka begins to work as a dominatrix for Madame. She becomes like a daughter to her. All seems well until a much younger boy falls in love with Agnieszka. Madame will not stand any competition."

After more than 20 years, the marriage of Bevon consultant Thea and car mechanic Rainer has been worn down by years of routine. Thea lacks appreciation from her family and no longer has access to her teenage daughter Janina. Her husband Rainer is still mourning his missed chance of a career as a rock star and is hopelessly at odds with his son Patrick. When Heinrich Bittner, a supposedly close friend of Thea's deceased father, suddenly moves in with the Cronpichels, Thea enjoys his presence and begins to see her life with new eyes. But is the charming and mysterious Heinrich really who he claims to be?

Inspector Susanne Landauer is called to a mission in the country. A schizophrenic woman admitted anonymously years ago has disappeared from Dr. Mangold's clinic. Susanne can only recover the woman dead from the nearby river. A DNA comparison reveals that the dead woman is her biological mother. Luckily, Susanne's partner Isabell is there for her.

With their two grown children gone, Anja and Michael Wagner move into their own apartment in the city center. Both are looking forward to their newfound freedom. But when Niklas, their youngest child, is kicked out of his roommate's apartment, he decides to move in with them and his girlfriend.