In medias res means starting a story after the important events are already underway, so the reader is dropped into action instead of eased in with backstory. The phrase is Latin for “into the middle of things,” and it is one of the oldest structural choices in storytelling: the writer withholds the setup, and the reader has to catch up.
A soldier is already running. A ship has already left the dock. The reader wasn’t there for what came before, and the story doesn’t pause to explain it. That gap between what has already happened and what the reader is told is where the technique gets its pull, and it’s why the opening page of a book that uses it well can feel more like a room you’ve walked into mid-argument than a scene someone is narrating to you.
Homer opens The Iliad in the ninth year of the Trojan War, with the fighting already a fact of life for everyone in it. Writers have been borrowing that move ever since, because it does something a slow open can’t: it makes the reader’s first job comprehension instead of patience.
In Medias Res Definition: What It Really Means
In medias res is defined as a narrative technique in which a story opens after significant events have already occurred, so the audience has to piece together what led there through action, dialogue, or memory rather than being told directly. The term comes from Latin: in means “into,” medias means “middle,” and res means “things” or “affairs.” Horace used the phrase in his Ars Poetica around 19 BCE, praising Homer specifically for starting his epics in the thick of events rather than at a hero’s birth.
That distinction matters for writers, and it’s the one most explainers skip. A story can open with fast pacing and still explain every event as it happens, scene by scene, in order. In medias res works differently: the reader arrives after key events are already in motion, with no earlier scene establishing them first. Speed is optional. The missing scene is the defining feature.
In medias res is one of the oldest structural choices in storytelling: the writer withholds the setup, and the reader has to catch up. This is also why in medias res shows up constantly in classical epic. Ancient audiences already knew the myths being retold, so a poet could open mid-war without confusing anyone; the technique assumes a reader willing to trust the gaps, which is exactly the trust a modern opening page has to earn from a stranger instead.
Why Authors Use In Medias Res
Authors use in medias res because uncertainty holds a reader’s attention more reliably than information does. A reader who doesn’t yet know why the room is on fire keeps reading to find out. A reader who has already been given the full backstory has less reason to turn the page, because the question that pulls someone forward has already been answered before they had a chance to ask it.
Starting mid-action also turns understanding into a reward instead of a prerequisite. Every detail the reader picks up on their own, who these people are, what they’re running from, what the stakes actually are, feels earned rather than delivered. That’s a stronger form of engagement than a cliffhanger, because a cliffhanger creates a question at the end of a scene; in medias res creates one on the first page, before the reader has spent any energy getting there.
It’s also a trust signal between writer and reader. Opening in the middle tells the reader the writer isn’t going to over-explain, and readers who pick up on that tend to lean in rather than skim, because they’ve been told without being told that their attention is going to be used well.
Start Your Publishing Journey FOR FREEIn Medias Res Examples: Famous Openings That Throw You Right In
The clearest examples of in medias res drop the reader into an active scene, a war, a chase, a person already in danger, with no earlier scene explaining how they got there.
The Iliad. Homer’s epic opens in the middle of the Trojan War, with Achilles already furious and refusing to fight. There’s no scene establishing the war’s start; the anger is simply already a fact the reader has to catch up to.
Star Wars: A New Hope. The film opens mid-battle, a Rebel ship under fire, Princess Leia already sending a secret message. The audience learns who the Empire, the Rebellion, and Leia are entirely through a scene already in progress, not through a scene set before the chase began.
Breaking Bad. The pilot opens with Walter White driving an RV through the desert in his underwear, sirens behind him. The show gives no earlier scene explaining who he is; the entire premise of the series has to be reconstructed backward from a man already in crisis.
The Martian, by Andy Weir. Andy Weir originally self-published The Martian as a serialized story on his own website, then as a 99-cent Kindle release in 2011, before a traditional deal followed in 2013. The novel opens with an astronaut’s log entry, recorded after his crew has already left him for dead on Mars. The disaster that stranded him is never dramatized as a scene; it only exists as something the reader reconstructs through what he says about it after the fact.
How to Use In Medias Res Without Losing the Reader
The safest way to open in medias res is with a moment of clear physical action already underway. Physical action gives a reader something concrete to orient around before any context exists, while internal reflection needs that context first to mean anything at all.
From there, three things keep the technique from tipping into confusion:
- Give the reader something to hold onto immediately. A name, a location, a single sensory detail, anything concrete, planted in the first few lines, so the missing backstory feels like a mystery rather than a gap in the writing.
- Choose the latest possible entry point. The strongest in medias res openings start as close as possible to the moment the outcome becomes uncertain, not earlier. If the scene could be cut and started ten pages later without losing anything, it started too early.
- Deliver the backstory in fragments, not a block. Reveal what happened before through action and dialogue as the scene continues, rather than pausing for a flashback chapter once the reader is hooked. The technique fails when the writer gives back, all at once, everything they withheld at the opening.
Should Your Next Story Start In Medias Res?
In medias res works because it changes what the reader’s first job is, from absorbing information to solving a small puzzle, and readers tend to lean into puzzles they didn’t ask for more willingly than information they didn’t ask for.
If you’re deciding whether to use it, check whether the reader arrives after something has already happened that they weren’t shown, regardless of how fast the opening feels. If the missing piece is interesting enough to chase, that’s an in medias res opening. If everything on the page is happening for the first time in front of the reader, no amount of tension on the page changes that.
FAQ: In Medias Res Meaning
Q: How do you say in medias res?
In medias res is pronounced “in MEH-dee-us rayss,” with the final word rhyming with “base” rather than the English word “res.” The phrase is Latin, not English, so each vowel gets its own separate sound instead of blending together the way it might in casual speech. Saying it correctly out loud is a quick way to signal you know the term, not just the meaning of in medias res on the page.
Q: What is the difference between a cold open and in medias res?
A cold open is a placement choice, a scene shown before any titles or credits roll, while in medias res is a timing choice, starting the story after key events have already happened. A cold open can use in medias res, and many do, but plenty of cold opens simply show something happening in real time rather than dropping the audience into an event already underway. The two overlap often without being the same tool.
Q: What are the disadvantages of in medias res?
The main disadvantage of in medias res is reader confusion. Withholding too much context for too long can make an opening feel disorienting instead of intriguing, and some readers put a book down if they can’t tell who a character is or what’s at stake within the first few pages. The technique also demands careful pacing, since the writer has to feed backstory in through action and dialogue without ever pausing to explain it directly.
Q: What is the effect of in medias res?
The effect of in medias res is immediate tension and a reader who has to actively reconstruct the story instead of passively receiving it. That active participation makes an opening feel faster and more urgent than one of the same length written in chronological order. It also builds trust quickly: a reader who has to work a little to catch up tends to assume the payoff will be worth it.
Q: What is the opposite of in medias res?
The opposite of in medias res is ab ovo, Latin for “from the egg,” meaning a story told in strict chronological order starting from the very beginning. An ab ovo opening explains a character’s background, motivations, and setting before the central conflict appears, which is useful when the setup itself is part of what makes the story interesting. Most modern fiction sits somewhere between the two approaches.
Q: Who coined the term in medias res?
The poet Horace coined the term in medias res, using the phrase in his Ars Poetica around 19 BCE while praising Homer’s structure. Horace pointed out that Homer opened his epics in the middle of events already in motion instead of at a hero’s birth, and held that choice up as a model for other poets to follow. The technique existed long before Horace; he simply gave critics a word for it.
Q: Why does the Iliad start in the middle?
The Iliad starts in the middle of the Trojan War because Homer’s audience already knew the myth before they ever heard the poem performed. There was no need to explain how the war began or introduce Achilles from scratch, so Homer could open with Achilles’ anger at Agamemnon and trust listeners to fill in the rest. That shared cultural knowledge let ancient in medias res openings work, though a modern opening has to earn that same trust without it.
Q: What is an example sentence for in medias res?
A simple example sentence is: “The novel begins in medias res, with the narrator already fleeing a building she can’t remember entering.” Used this way, the phrase describes the structural choice itself rather than any particular story, which is why it shows up so often in writing craft books, editorial notes, and literature classes. Telling an editor or critique group your draft opens in medias res is a fast, precise way to signal exactly what kind of opening you’ve written.
