Touch darkness and darkness touches you. HBO presents Season 1 of this searing drama series about two detectives--played by Matthew McConaughey and Woody Harrelson--and their epic hunt for a serial killer in Louisiana. In 2012, Martin Hart (Harrelson) and 'Rust' Cohle (McConaughey), for reasons not immediately revealed, are interviewed separately by investigators about their most notorious case: the macabre 1995 murder of a prostitute by a possible serial killer with disturbing occult leanings. As they look back on the case, Hart and Cohle's personal backstories and often-strained relationship come into focus, all connected by one thing: their shared obsession to hunt down the killer. The supporting cast includes Michelle Monaghan, Kevin Dunn, Tory Kittles, Michael Potts, Elizabeth Reaser, Shea Whigham, Clark Peters, Jay O. Sanders, Alexandra Daddario and Lili Simmons.