Ursula Trautzschke, the mother of Hajo has observed strange things in the retirement home where she lives. In the night she saw a funeral car arriving at the home and later the same funeral goes away. Also some boarder have disappeared. Hajo listens to his mother who presents him Mr. Singer who helps her in her investigation. Hajo takes advantage of this visit to go the room where Mr. and Mrs. Odenthal where living and finds a syringe under a bed. The doctor of the home appears and Hajo says him that his mother would like to change her room for this room. Also the behavior of the doctor seems to him quite strange. In the office Jan informs that the doctor had lost his license some years ago for a medical mistake in a medical center. Besides in the syringe the laboratory found elements of morphine. The manager of the home said Hajo that the boarders have returned to their sons or that they have moved to Florida. A couple has returned to the house of their son but they don't have notice about the Odenthal couple.
—zutterjp48