Sue Bennett returned to her old profession of nursing when she realised that she was not going to make the grade in an acting career; but suddenly she found herself involved in a real-life drama which provided as much mystery and excitement as any stage play. She had to find the reason for Dr. Vittorio Megaro's taking such an intense interest in patients who were obviously from the underworld. Because Megaro's involvement would, sooner or later, ruin the practice that he and Dr. Brian Hudson had purchased in King's Cross; and Brian wa Sue's lover. But the mystery surrounding Megaro was much deeper than either Sue or Brian realised. (Back cover)