When the police arrive at her doorstep with a warrant for Peter's arrest in connection with another murder - that of a woman Peter had escorted to a high school senior prom twenty-two years ago - Kay begins to fear that she has married a sleepwalking murderer, and she resolves to find out the truth behind the puzzling deaths. But are the two deaths linked? And why does a melody that Kay cannot identify keep playing in her head every time she approaches the family chapel?
