They need to talk to more subjects.

One of the most talked about new shows this year was Netflix’s David Fincher-produced/directed “Mindhunter,“ which premiered its first season back in October. Fans of Fincher’s Zodiac were treated to 10 mindblowing episodes of the new series that boasted a plethora of talented directors from The Amityville Horror‘s Andrew Douglas to Asif Kapadia (Amy, Senna), and Tobias Lindholm (A War, A Hijacking).

Written by playwright Joe Penhall and Scott Buck, “Mindhunter” is based on the 1996 book “Mind Hunter: Inside the FBI’s Elite Serial Crime Unit,” by former special agent John Douglas and Mark Olshaker, which goes behind the scenes of some of Douglas’ highest-profile cases, including the man who hunted prostitutes in Alaska, the Atlanta child murderer, and Seattle’s Green River killer.

The series is set in 1979 and centers on the inquisitive and skilled FBI Agent Bill Tench (Holt McCallany) who, along with fellow serial killer investigator in the behavioral science unit, FBI agent Holden Ford (Jonathan Groff), interviews serial killers to help them solve current murders.

Netflix has announced a second season this morning, which should see the full return of  Groff, McCallany, as well as Anna Torv (Fringe), Hannah Gross (Unless) and newcomer Cameron Britton, who portrays serial killer Ed Kemper on the series.

This is a must-see new series that is the perfect winter binge with some eggnog in hand.