True Detective focus on two detectives and their epic hunt for a serial killer in Louisiana. Martin Hart and Rust Cohle 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 Cohles personal backstories and often-strained relationship come into focus, all connected by one thing: their shared obsession to hunt down the killer.