Slow Horses Season 6 Episode 4: Why Coe’s A-ha Obsession Became the Episode’s Funniest Running Joke

Jackson Lamb and the Slough House agents in Slow Horses Season 6
Image courtesy of Apple TV

Episode 4 uses Take On Me and Coe’s music choice as a small character detail inside a story about a hit squad.

The contrast is immediate: Coe presents himself as controlled and difficult to read, while the song is open, melodic and instantly recognizable. This is the key to the article’s central angle, because it connects the immediate event to the larger story rather than treating it as an isolated twist.

The episode makes the central conflict personal

Repetition turns that mismatch into a running joke rather than a single soundtrack cue. The result is a choice with consequences for more than one character, and the episode gives that pressure room to build.

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It also gives River and Sid something ordinary to react to while their situation becomes less ordinary by the minute. That detail matters because it changes how the audience should read the scenes that follow and keeps the conflict grounded in what has actually been shown.

Slow Horses often finds comedy by refusing to separate workplace irritation from mortal danger. It also prevents the story from reducing a complicated decision to a convenient piece of plot machinery.

Why the reveal changes what comes next

Coe’s playlist fits that method because it feels like the kind of trivial preference colleagues would notice at the worst possible time. The show can now develop that consequence directly instead of returning to the same unanswered setup.

The joke gains a bittersweet edge after Coe’s death, when the music becomes attached to his final stretch with the team. In practical terms, this raises the cost of the next decision and gives the supporting characters a reason to challenge the person at the center of the story.

That shift does not cancel the humor. It makes the earlier teasing feel like evidence of a bond the characters rarely state directly. The contrast is important: an answer can close one question while opening a more difficult emotional or strategic problem.

The story avoids an easy resolution

A-ha also provides a cleaner emotional contrast than the show’s grim score could offer. That approach preserves uncertainty without pretending confirmed information is still a mystery.

By the end, the obsession is funny, specific and unexpectedly sad, which is exactly the tonal combination the series handles best. It is a more useful ending point than a broad prediction because it identifies the exact choice the next chapter must confront.

The distinction is worth keeping clear. Confirmed events explain the current story, while any forecast must remain tied to the choices and evidence already on screen. That boundary leaves room for surprise without asking readers to accept speculation as fact.

What did you make of this development, and what should the story address next? Share your view in the comments.

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