After the harrowing death of his partner, forensic psychologist and best-selling author Alex Cross cannot forgive himself and has retreated to the peace of retirement. But when a brilliant criminal kidnaps a senator's young daughter, he is lured back into action as the kidnapper wants to deal with Alex personally. Teamed with Jezzie Flanigan, the Secret Service agent assigned to protect the missing girl, Alex follows a serpentine trail of clues that leads him to a stunning discovery - the kidnapper wants more than just ransom.

When his daughter is murdered, William Duncan takes the law into his own hands, setting out on a quest for retribution. After killing the street thug responsible for her death, he finds himself in the middle of a war with the thug's brother, father, and their gang, who are equally hell-bent on getting even. What ensues is a tense back-and-forth game of vengeance. By the end, William comes to find that the quest for revenge never has a winner.

After losing her job, a single mom falls into a lucrative but ultimately dangerous scheme selling prescription drugs.

The story revolves around three characters and their relationship with a life-like robot.