"Living amongst the normies"

That's what the killer's voice says about The Expert:

"Stone’s throw from the city that never sleeps. Barely off the beaten path. What are you doing? Living amongst the “normies.”

Then:

"For an active practitioner, bedroom community adjacent. Unusual choice"

And then we have the probable reason. The Expert says to the Killer in the restaurant:

"When I started, I was surprised at what I was capable of. How easy it was. Shockingly. Yet, I assured myself there were some things I would never do. Money was motivation. Which… once there was enough, could be used to buy another life. Another lie we told ourselves"

But it wasn't lie as far as our protagonist was concerned. He bought another life and then retired with his girlfriend.

It was true about The Expert. She couldn't say 'good bye North America'. There was no other life. So she tried to live in it the best she could, amongst the normies. A sleepless job near the sleepless city.

Then comes the joke, and the irony is even more intense. "You're not here for the hunting, are you?".

Because it's about killing and sex. Our killer keeps those things separate. There's the job and there's Magdala. One life, the other life. But for The Expert, there's just one life. Is that why the androgynous Tilda Swinton was cast? Was The Expert her own boyfriend? Her own 'other life'? In that case there maybe was a twisted sexual component to her job, absent from The Killer's life. What did she want to do to Magdala? Not beating the shit out of her probably. What then?

Still, one wonders about the ending, both the Killer and Magdala wearing shades...not a big deal, but it's quite similar to the ending of Friedkin's 'Cruising', a film sort of referenced by Se7en, written by the same guy. Here:

https://youtu.be/jkB1esW-vbI?si=2zepM1AsSITT8j0Q

And here:

https://youtu.be/8khwOaipYdw?si=BOW3BL_FDkaeQjVi