Battling the strange epidemic of murder-suicides that claimed Jane Hawk’s husband, and is escalating across the country, has made the rogue FBI agent a wanted fugitive. Jane’s ruthless pursuers can’t stop her from drawing a bead on her prey: a cunning man with connections in high places, a twisted soul of unspeakable depths with an army of professional killers on call. Propelled by her righteous fury and implacable insistence on justice, Jane will confront head-on the lethal forces arrayed against her. But nothing can prepare her for the chilling truth that awaits when she descends the crooked staircase to the dark and dreadful place where her long nightmare was born.