Mary and Rust are back on the job together. This is a scene from True Detective Season 1 Episode 7.
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Hart and Cohle put aside their differences to solve a series of disappearances on True Detective. "After You've Gone" is the seventh episode of the show's first season.
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True Detective Season 1 Episode 7 Quotes

Rust: Life's barely long enough to get good at one thing.
Marty: If that long.

I had my time where I wondered if this was all in my head. That time passed.

Rust