Have You Noticed That True Detective's Theme Song Changes Every Week?

The second season of True Detective has so much bizarre stuff (Rick Springfield as a creepy psychiatrist, anyone?) that you may have missed one strange detail: the theme song's lyrics have changed slightly every week. For the most part, the song, a version of "Nevermind" by Leonard Cohen, remains the same from the first episode's opening credits, but at one verse changes every time. Below is the opening sequence from the first episode.

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Here's the difference in the lyrics:

Episode One:

"The war was lost, the treaty signed
I was not caught, I crossed the line
I was not caught, though many tried
I live among you, well disguised"

Episode Two:

"Never mind, never mind
I live the life, I left behind
There's truth that lives, and truth that dies
I don't know which, so never mind"

Episode Three:

This was your heart, this swarm of flies
This was once your mouth, this bowl of lies
You serve them well, I'm not surprised
You're of their kin, You're of their kind

All of these verses are in the original song, but why would the version change every week? Do the lyrics correspond with the episode's subject matter, or are they a hint at what's to come? Here's audio of Cohen's original version to enjoy while you ponder these questions:

click to play video