when we started talking about it, i got interested, here is what I also found out
. But Lightfoot didn’t write the song about his ex-wife. Instead, the song came out of his long affair with Cathy Smith, the notorious groupie and ex-drug dealer who would later do prison time for shooting John Belushi up with the speedball that killed him.
The night Lightfoot wrote “Sundown,” he was sitting at home, stressing out. Smith was out at a bar with her friends, and he was worried that she’d hook up with someone else. He put all his most immediate feelings into the song, which he literally wrote as the sun was setting.
“Sundown” is a pretty atypical piece of mid-’70s folk-rock. It’s not soft or fluffy or reassuring. Instead, it’s ugly and sweaty and driven. That’s what’s interesting about it. It’s one of the reasons why the song works as well as it does. Lightfoot might’ve been contemporaries with people like John Denver or Cat Stevens, but he carried a darkness that those guys didn’t have.
He’s fixated on her, on possessing her. He knows that he’s leading himself down a dark path: “Sometimes, I think it’s a shame / When I get feeling better when I’m feeling no pain.” He spends his nights worrying about catching someone creeping ’round his back stairs. And there’s no resolution; he ends the song stuck in that simmering-rage fugue state.