The prologue opens with a mystery person's point of view on knowledge, power and killing, "People say that knowledge is power. The more knowledge, the more power. Suppose you knew the winning numbers for the lottery? You would run to the store. And you would win. Same for the stock market. You're not talking about a trend or a percentage game or a whisper or a tip. You're talking about knowledge. Real, hard knowledge. You would buy. Then later you'd sell, and you'd be rich. Any kind of sports at all, if you could predict the future, you'd be home and dry. Same for anything. Same for killing people."

In New York City, Reacher confronts and beats up two thugs sent to collect protection racket money from the new restaurant in which he has just finished dinners, and deliberately implies to the thugs that he is a member of a rival crime organisation. Reacher is picked up by the FBI and questioned but explains he's been a loner since he mustered out of the army. He is then questioned about two women whose cases of sexual harassment he dealt with when he was an MP. It is revealed they have both been killed in the last few months and a criminal profiling team has come to the conclusion that the person responsible was someone exactly like Reacher. Reacher realizes that he has no alibi for the places and times that the women were killed, and he requests a lawyer.