Dailies | Matthew McConaughey, Woody Harrelson Play Bad Cop-Bad Cop in HBO's ‘True Detective’ Trailer (Video)

Matthew McConaughey, Woody Harrelson Play Bad Cop-Bad Cop in HBO's 'True Detective' Trailer (Video)

The two Louisiana policemen spend nearly two decades trying to crack one huge case

“Do you wonder ever if you're a bad man?” Martin Hart (Woody Harrelson) asks his partner Rust Cohle (Matthew McConaughey) in the trailer for the upcoming HBO series, “True Detective.”

“The world needs bad men,” answers Cohle between cigarette puffs.” We keep the other bad men from the door.”

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In the new HBO drama, the two cops become obsessed and entangled during a 17-year search for a serial killer in their native Louisiana.

“True Detective,” which promises depth and darkness, premieres in January.

Watch the trailer: