There's been a ton of great writing about True Detective and its influenes in the weeks leading up to it finale on Sunday night. Here's a closer look at the ur text of True Detective source material, Robert Chambers's The King in Yellow.
An element of the supernatural hangs over the stories like black stars over Carcosa. These elements do a marvelous job of distracting the reader from the fact that none of the narrators can be believed. It matters less that their sanity has been compromised than the fact that their accounting of events is highly suspect. If you've been paying attention to True Detective, you know that the detectives' unreliability is crucial to the how the story-within-the-story unfolds.