Loner Romy Kiener lies dead under a bridge, blood traces at home suggest she was moved to stage a suicide. She was devoted only to her adult daughter, who recently heard about trouble at Romy's work for caterer Sascha Lutz, who illegally used ingredients past expiration date to avoid bankruptcy due to killer competition. Nurse Jana left home after a big brawl, as turns out over the conclusions from a blood donation and contacted a couple from out of Wismar.