Guides

In Medias Res: Starting in the Middle of the Action

2026-10-12 · 6 min read

Plan, draft, edit and pitch the same book in one project.

"In medias res" — Latin for "into the middle of things" — is a classic technique of beginning a story in the midst of the action rather than at the chronological start, with setup and backstory filled in afterward. It's one of the oldest and most effective ways to hook readers immediately, plunging them into something happening rather than easing them in. Closely related to the cold open, in medias res is a powerful tool for grabbing attention and avoiding slow, setup-heavy openings. Understanding how to use it — and how to handle the backstory it skips — helps you open stories with immediacy.

This guide explains in medias res and how to use it.

What in medias res means

In medias res means beginning a story in the middle of the action — opening at a moment of something already happening, rather than at the chronological beginning with leisurely setup. Instead of starting with exposition (establishing the world, characters, and situation before anything happens), the in-medias-res opening drops the reader directly into an event, scene, or moment of action/tension already underway, and fills in the necessary context and backstory afterward, as the story proceeds. It's a technique as old as classical epic and as current as modern thrillers — a durable, effective way to open. The core idea: action first, context later. By starting in the thick of things, in medias res grabs the reader immediately and avoids the slow buildup that loses readers. It's the opposite of the "start at the very beginning and explain everything first" approach.

Why it hooks readers

In medias res is so effective because it delivers immediate engagement — the thing openings most need. By starting in the middle of action or tension, it gives the reader something compelling from the first lines, hooking them before they have a chance to drift. This counters the common opening mistake of spending early pages on setup, backstory, and establishment before anything happens — by which point readers may be gone. In medias res inverts this: it leads with the interesting part, creating immediate momentum and questions (what's happening? how did we get here? what's at stake?) that pull readers forward seeking answers. In a world of sample-reading and short attention spans, this immediate hook is invaluable. The technique works because it respects a fundamental truth of openings: readers engage with something happening, not with preamble. Starting in medias res ensures your opening grabs rather than eases.

Handle the backstory afterward

The key craft challenge of in medias res is handling the backstory and context you've skipped. Since you've started in the middle, the reader needs the who, what, where, and why filled in — but gradually, woven into the unfolding story, not dumped right after the exciting opening. The bargain of in medias res is action first, context later: having hooked the reader, you then weave in the necessary exposition and backstory as the story continues, at a pace that maintains momentum. The reader, now engaged, will happily absorb context they'd have skipped if front-loaded. Avoid the trap of dumping all the skipped setup in a big block right after the opening (which kills the momentum you just created) — instead, reveal context naturally and gradually as the story unfolds. Managing this — keeping the reader oriented enough to follow while filling in the backstory in motion — is the essential skill of in medias res. Hook first, then explain on the move.

Give just enough orientation

A balance to strike: while in medias res withholds full context, the reader needs just enough orientation to follow the opening and not be lost. Total disorientation — dropping the reader in with no anchor — undermines engagement (confusion overwhelms interest). So provide a minimal foothold: enough sense of who the POV character is, the immediate situation, and what's at stake in this moment to follow the action and care, even without the full picture. You're not explaining the backstory; you're giving the few essentials to track this moment. The skill is plunging into immediacy while seeding the small orienting details that prevent confusion — intriguing the reader, not losing them. Calibrate the orientation: enough that the reader can follow and engage, while the full context is revealed gradually afterward. This balance — immediate action plus minimal grounding — is what makes in medias res hook rather than baffle.

When to use it

In medias res suits stories (and openings) that benefit from immediate engagement and momentum — thrillers, action, suspense, and any story wanting to grip from the first line (it pairs naturally with the Fichtean Curve's minimal-setup approach). It's a go-to fix for slow, setup-heavy openings. But it's not the only valid way to open — some stories (quieter, literary, or richly atmospheric) open well with more gradual establishment, and in medias res can feel like a gimmick if forced where it doesn't fit. Also, you can apply the technique at the scene and chapter level throughout (entering scenes late, in the action), not just at the book's opening. Use in medias res when immediate momentum serves your story and opening — which is often — while recognizing that thoughtful, more gradual openings also have their place. Match the opening approach to your story's needs.

The bottom line

In medias res — "into the middle of things" — means beginning a story in the midst of the action, plunging the reader directly into something happening rather than easing in with setup, and filling in backstory and context afterward. It hooks readers through immediate engagement, leading with the interesting part and creating momentum and questions that pull them forward — the antidote to slow, setup-heavy openings that lose readers. The key craft is handling the skipped backstory: weave the necessary context in gradually as the story unfolds (not dumped after the opening), while giving just enough orientation to keep the reader following without confusion — immediate action plus minimal grounding. Use it when momentum serves your story (especially thrillers and action), and apply it at the scene level too, while recognizing that more gradual openings also have their place. Done well, in medias res is one of the most effective, time-tested ways to open a story with immediacy and grip.

Frequently asked questions

What does in medias res mean?

In medias res is Latin for "into the middle of things" — beginning a story in the midst of the action rather than at the chronological start, with setup and backstory filled in afterward. Instead of opening with exposition, it drops the reader directly into an event or moment already underway, then weaves in the necessary context as the story proceeds. The core idea is action first, context later.

Why is in medias res effective?

It delivers immediate engagement — giving the reader something compelling from the first lines and hooking them before they drift. It counters the common mistake of spending early pages on setup before anything happens, and creates momentum and questions (what's happening? how did we get here?) that pull readers forward. In a world of sample-reading and short attention spans, this immediate hook is invaluable.

How do I handle backstory when starting in medias res?

Weave it in gradually as the story unfolds, not dumped in a block right after the opening (which kills momentum). Having hooked the reader with the action, fill in the necessary context and backstory at a pace that maintains momentum — the engaged reader will happily absorb context they'd have skipped if front-loaded. Reveal the who, what, and why naturally and in motion.

Can starting in the middle confuse readers?

It can if you drop them in with no anchor at all. The fix is giving just enough orientation — a sense of who the POV character is, the immediate situation, and what's at stake in this moment — to follow the action and care, even without the full picture. Plunge into immediacy while seeding small orienting details that prevent confusion, then reveal full context gradually afterward.