Katharina became a mother after an artificial insemination when she died in a traffic accident. Although her wife Ellen is the guardian of little Franz, she has custody - unlike in heterosexual marriages - without adoption but not. And not only the biological father of the child, also the parents of the deceased Katharina make claims.
Hanni works around the clock as a cleaning lady. She has to because her husband, whom she loves, has not exactly shown himself to be a support financially. They also have their son Viktor. One day Hanni witnesses an attempted murder on an old lady. The killer now has an involuntary confidante and must eliminate her. But it doesn't come to that because Hanni uses her cleaning agents at the right moment, with her presence of mind. The killer falls unhappy and falls into a coma.
The senior investment banker Jochen Walther is at the peak of his career at the Deutche Bank. He just finished the deal of his life along with his personal assistant Tom Slezak, when during the celebrations he suddendly jumps from the roof of the bank's headquarters in Frankfurt. Was it suicide or even a murder?