David Fincher's new Netflix series Mindhunter gets a chilling first teaser

Netflix already fascinated you with true-crime documentary series Making a Murderer, but its new thriller Mindhunter looks just as unsettling.

The upcoming drama series comes from the dream team of Netflix, House of Cards' David Fincher and producer Charlize Theron, and is based on the true-crime book Mind Hunter: Inside FBI's Elite Serial Crime Unit.

Set in 1979, Hamilton and Glee's Jonathan Groff and Jack Reacher: Never Go Back's Holt McCallany are a pair of FBI agents who interview serial killers in hopes of understanding what ultimately motivates them to kill.

Their motto is simple: "How do we get ahead of crazy, if we don't know how crazy thinks?"

The trouble is that their bosses at the FBI are starting to wonder if the agents are getting a little too close to their subjects as they investigate some of the most grisly cases in the Bureau's history.

"It is not our job to commiserate with these people. It's our job to electrocute them," their superior tells them in Netflix's brand new trailer.

Adapting the actual Mind Hunter book is Joe Penhall, the acclaimed playwright who previously brought Cormac McCarthy's influential post-apocalyptic novel The Road to the big screen.

Playing an FBI agent obsessed with understanding the mind of killers is quite a change of pace for Jonathan Groff, who recently wrapped up a hugely successful run as King George III in Hamilton and was also the voice of Kristoff in Disney's animated hit Frozen.

We'll see a more disturbing side to Groff when Mindhunter makes its Netflix debut this October.

This story originally appeared on Esquire.co.uk.

* Minor edits have been made by the Esquiremag.ph editors.