Mindhunter (2017 TV Series) - Season 1 - Episode 1: "Deviant Terminology"

In 1977, FBI negotiator Holden Ford faces a traumatic hostage situation. Frustrated by traditional methods, he partners with veteran agent Bill Tench to explore the psychology of serial killers. Their groundbreaking approach begins as they interview imprisoned murderer Edmund Kemper, revealing chilling insights into criminal behavior and setting the stage for their research project in criminal profiling.