The inspectors Till Ritter and Felix Stark have to clarify the background of a series of assassination attempts. Christina Lehndorff urgently asked Inspector Ritter, her former boyfriend, for help: First her family's car was attacked and then her dog was poisoned. Eventually, Christina Lehndorff was assassinated herself. Ritter, whose old love for Christina is revived, investigates together with Stark in the family environment. Are there dissatisfied customers in Christina's bankruptcy firm? Does her husband Dr. Lehndorff responsible for medical malpractice? Things get really dramatic when Sophie, the couple's 13-year-old daughter, disappears...