Die unlösbaren Fälle des Herrn Sand

One could almost believe, two fresh lovers would kiss here tenderly. In fact, Jan and Katja come straight from the divorce judge who finished what had started promisingly - a harmonious, fulfilled marriage and family life. The common house building was too much for their relationship. While a dream came true for Katja, the building was a pure torture for Jan. He escaped more and more and started an affair. When Katja comes after the infidelity, there is only one consequence for her: Divorce.

The young musician Katharina keeps afloat after completing her studies with odd jobs over water. But then her grumpy father Hubert suffers a heart attack - and suddenly Katharina has to take care of the catering company. When she learns that the company is about to go bankrupt, she tries to get the company back on track with wit and creative ideas. Nonetheless, the creditor bank is giving aside adviser Ben Hallbauer. First, Katharina is anything but pleased about this "watchdog".

Mid-forties Franziska is pregnant. Instead of looking forward to it, her husband Andreas opens up that he separates from her because he can no longer endure her neurotic control rage. As much as Franziska always wanted a child, as a single parent she sees no perspective. But then she meets the pregnant, 19-year-old Lilli. The funky woman whirls Franziska strictly regulated everyday life together and shows her how wonderful life can be, if you allow it

For Neele and her life partner Steff, the dream of having one's own child finally seems to come true: Steff is pregnant. However, there was a confusion in the artificial insemination - instead of their carefully selected sperm donor, they caught a sperm donation from a gay couple: Kalle and Jens also want a baby and consider the confusion as a kind of coincidence. While the two men look forward to their time as active fathers, Neele and Steff see their harmonious trinity at risk.

As a housewife, wife and manager of a family business, Anne Stadler has everything under control. So the wedding of her only daughter Lisette should be a fantastic event, as she herself was not allowed to experience it. With Elan Anne organizes in the contemplative Black Forest village a social event of the first order, with church blessing, many guests and a big stag party. But in the middle of the preparations, she caught her godfather Gerd in the family-owned sawmill at the fling. When finally Arno Freywald appears, father of the groom Daniel and impostor, the cards are shuffled.