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How to Write a Vertical Series Hook (Every Second Counts)

Brian Hanford · September 14, 2026 · 5 min read

Vertical viewers swipe fast. So, what is it that makes them stop? We’re discussing why loud openings don’t work, and the one-sentence test to check your hook is legit!


How to Write a Vertical Series Hook (Every Second Counts) — dev|cut.

You’ve got somewhere between three and eight seconds before a vertical series viewer swipes away for good. That’s not a marketing stat, it’s something you can watch happen in real time on almost any platform’s drop-off graph. So, the real question your opening has to answer is: “why does this specific person keep their thumb still?” Asking “is this interesting?” simply isn’t enough. Those are two different questions, and mixing them up is where most vertical hooks fail before the story ever starts.

A hook is a promise, not a jolt

Here’s the confusion that trips up a lot of writers moving into the vertical format: they look at a loud opening as the same thing as a strong hook. A scream, a gunshot, a car swerving into frame… all of that grabs attention for a second, of course it does. It’s exciting. But attention isn’t the same as commitment, and commitment is the only thing that gets someone to stop scrolling and stay for episode two.

A real hook is a promise. It hands the audience a specific, nameable question in the first few seconds, and it makes them care enough about the answer to sit through the ad or the swipe-up. “Something intense just happened!” Yea, that ain’t it. “Wait, why did she say that to him at his own wedding?!” Now we’re talking.

We wrote about this same idea from the other end of the episode a little while back, in How to Write a Cliffhanger, where the point was that a cliffhanger is a bet, not a jump-scare. A hook and a cliffhanger are doing the exact same job, just in two different places. One opens the bet, the other doubles down on it. If your hook isn’t a bet, whatever your ending tries to do later has nothing underneath it to build on.

It’s also the same muscle behind Vol. 8 of The Reader’s Note, on what compression exposes in a vertical series script. The opening beat is the first place that exposure shows up. There’s nowhere to bury a weak hook behind a nice establishing shot. You’ve got a few seconds and that’s it.

The two failure modes, and the one most writers default to

The loud-but-empty open. Something dramatic happens on screen, but there’s no real question attached to it. It reads exciting for a beat, but is shallow and the viewer realizes they don’t know or care to know what they’re supposed to be wondering about, and the thumb moves in.

The slow-burn open. This one’s borrowed straight from feature scripts or hour-long TV habits. Picture a scene that sets a mood or establishes a world before getting to the point. Lovely. That instinct works fine when you’ve got ninety pages of goodwill built in. In a vertical, you don’t get the first thirty seconds to be patient, you get maybe eight, and every one of them is the viewer deciding whether to stay.

Both mistakes come from the same place: writing the opening like it’s setup for later, instead of writing it like it’s the actual pitch.

The test to run before you lock your first scene

Ask yourself this, and try to answer it in one sentence: “what does the audience want to know that they don’t know yet, and why do they want to know it right now?” If you can’t answer that in one sentence, you don’t have a hook, you have an opening image. Those aren’t the same thing, and only one of them survives in the vertical series game.

If your answer is something like “will he survive,” that’s a start, but it’s thin on its own, the same way a ‘plot-danger cliffhanger’ is thin on its own. The stronger version usually stacks a second layer underneath it, a relationship, a piece of information, a choice that can’t be undone. We want to shift the question from “what happens?” to “what does this mean?”

What if you’re writing a feature or for TV?

None of this is unique to verticals, which is worth sitting with for a second. A pilot’s cold open, the first page of a feature spec, the opening scene of an hour-long, they’re all making the exact same promise, just with a lot more runway to get there. The difference is forgiveness. A feature can survive a soft opening page if page four earns it back. A vertical can’t, because there usually isn’t a page four in the viewer’s mind, there’s just the next swipe.

So, if you’re writing anything longer than a vertical episode, the honest exercise is to pretend you don’t have that forgiveness. Read your first page (or first couple pages) and ask the same one-sentence question: “what does the audience want to know that they don’t know yet, and why do they want to know it right now?” If you can’t answer it, that’s worth knowing regardless of format, and you’ve just found out about it the easy way instead of the expensive way later on.

For us at dev|cut., this is exactly the kind of thing we’re checking for in the first few pages of any script that comes through for coverage, vertical or not. Not “does something happen,” but “is there a specific bet on the table, and would a stranger want to know how it resolves?” That’s the note that matters before anything else can really take off.

If you want more of this, the craft breakdowns, the buyer-side thinking, the occasional pilot that does three jobs at once, check out The Reader’s Note (our newsletter).

Writing in the format? How we cover verticals.

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[Soon] The story continues… — Brian Hanford, Writer & Founder, dev|cut.™ · devcut.io

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