Baffled by a seemingly supernatural connection to his critically injured sister, an FBI special agent heads to the Oregon coast in search of a more plausible explanation for his sudden ESP, only to discover more puzzling mysteries.

Hoping to escape unwanted celebrity in the aftermath of a notorious incident, Ramsey Hunt settles in the Rockies, determined to bury himself in the safety of a solitary existence. But his isolation is shattered when he stumbles upon a small girl unconscious in the high-altitude forest. When strangers pursue Ramsey to his private meadow in an attempt to kill him and the girl, he's mystified that anyone would wish her harm.

When FBI agent Dane Carver's twin brother, Father Michael Joseph, is brutally murdered in his San Francisco church, husband-and-wife agents Lacey Sherlock and Dillon Savich take a personal interest in the investigation. Nicola "Nick" Jones, a homeless woman and the only witness to the shooting, is scared out of her mind because she is trying to hide from her own monsters.

Lillian Smith leads an unexceptional life, writing obituaries and killing time with her inattentive husband and disconnected son. Then she meets David, a handsome stranger, in a coffee shop. Lured into an affair, she invents a new persona, one without strings, deadlines, or brooding husbands. Lillian has never felt so reckless, unpredictable, or wanted. But as her affair with David intensifies, she withdraws from everything that’s real, even her closest friend.

Lacey Sherlock's life is forever changed when her older sister's body is discovered in an abandoned warehouse. She is the fourth victim of the String Killer, the name given by the media to a murderer who leads his victims into a maze with a ball of twine. Seven years after Belinda's death, Lacey, now an FBI agent, is paired up with computer whiz Dillon Savich, who has developed a predictive program to aid in the apprehension of serial killers.