"Savannah is shaken to the core when coroner Dr. Jennifer Liu appears on her doorstep late one night with a disturbing confession. In a potentially career-ruining move, a remorseful Dr. Liu admits to fudging an autopsy report to keep her friend Brianne's suicide a secret--fulfilling a final promise made before the terminally ill woman administered a lethal drug cocktail. But after Dr. Liu finds the same unique mixture in a second body, she fears the...