Mindhunter: Inside the FBI's Elite Serial Crime Unit

Four criminal cases and four dangerous maniacs who, without compassion or pangs of conscience, cold-bloodedly took other people’s lives. Who were they before prison, and why did they decide to commit murders? In a tiny interrogation room, former FBI agent John Douglas talks to each of them and tries to understand how crimes are born. By analyzing case materials, the killers’ biographies, and their psychological state, he explains how they think and what drives them.