Note: This story contains spoilers from “Severance” Season 2, Episode 9.

Irving and Radar board a train, headed to a destination unknown.

It’s a bittersweet though very open-ended conclusion for John Turturro’s outie and his loyal dog in “The After Hours,” Episode 9 of “Severance” Season 2. Irving and Radar are given an opportunity to start a new life — in fact, it’s an urgent, ominous command — by Burt (Christopher Walken).

Burt, it turns out, is a longtime Lumon goon who has experience doing dirty work for the company. But he opts to spare Irving from a much worse fate, driving him to a rail line and pleading with his heartsick friend to go far away and never come back.

Irving tells Burt that he’s never experienced anything like the chemistry and bond that the two men share. Struggling to speak and holding back a sob, it’s perhaps Turturro’s...