Another thriller by the well-known author about an investigation. This time they unravel the story of strange illnesses affecting the children in a millionaire’s family. A mysterious incident leaves a psychiatrist-therapist, Alex Delaware, at a loss: little girl Cassie, barely cured of another puzzling illness, ends up in the hospital again and again. Alex and his friend, the police officer Milo Sturgis, begin their investigation. Meanwhile, events in the hospital take a tragic turn: one of the doctors advising Cassie is murdered, as is his assistant. But then, one day, a TV camera secretly installed at the girl’s bedside transmits an image of the killer leaning over Cassie with a syringe in hand…