Netflix’s new drama Mindhunter explores the early days of the FBI’s Behavioral Science Unit, as investigators interview imprisoned serial killers in an effort to understand their motivations. As is common for Netflix shows, Mindhunter seems to breed endless discussion and debate. The A.V. Club recently sat down with stars Holt McCallany, Anna Torv, and Jonathan Groff to discuss the show’s success and executive producer David Fincher’s approach to delving into such cerebral topics.