Mixtape for the Apocalypse

The One I Somehow Missed

I found Rampant in the least romantic way possible: not through a festival programme, not through a late-night channel stumble, and not through a friend handing me a disc with the solemn urgency of someone passing on forbidden knowledge. I found it through a Facebook reel montage, which is apparently how forgotten corners of my film education now come back to accuse me.

The reel was running through Korean zombie cinema — Train to Busan, #Alive, Kingdom, the usual infected bodies bending in ways bodies should not bend — before drifting towards Yeon Sang-ho’s 2026 film Colony. Somewhere in the middle sat Rampant, a 2018 period action-horror film with palace conspiracies, sword fights, night creatures and Hyun Bin cutting his way through Joseon in a white hanbok. I had somehow missed the entire thing. For someone who has watched more zombie films than is probably sensible, that felt less like a gap in the watchlist and more like a clerical error.

What made the discovery more irritating was how exactly it sits inside my usual weak spot. Give me an outbreak, a besieged building, a few people making bad decisions under pressure and a production designer who understands the usefulness of torchlight, and I am already halfway in. Add court politics and sword choreography and there is very little resistance left. Rampant should have found me years ago. Instead I came to it after the Korean zombie wave had already established its landmarks, which turns out to be both the problem and the interesting part.

Before Kingdom, But Standing in the Same Graveyard

Rampant opened in South Korea on 25 October 2018. The Korean Film Council database lists Kim Sung-hoon as director, a 121-minute running time and just under 1.6 million admissions. Netflix’s Kingdom arrived in January 2019. They are separate works, but watching Rampant now makes the proximity impossible to ignore: Joseon, a royal succession problem, a spreading infection, common people abandoned by the court, and bodies that become much more energetic after death than anyone would reasonably prefer.

Because I saw Kingdom first, the comparison initially works against Rampant. Kingdom had episodes in which to let geography, hunger, class and bureaucracy accumulate into dread. It could spend time showing how an outbreak moves through a system before it moves through a body. Rampant has barely two hours and behaves accordingly. It wants the prince, the minister, the monsters, the sword, the palace and the fire all moving towards the same evening.

That difference matters. Once I stopped waiting for Rampant to become the film I had already seen later on television, its own personality became clearer. It is faster, pulpier and less patient. The politics are there, but they are fuel for an action film rather than the engine of a long-form political horror story. That compression is both its appeal and its limitation.

Joseon, But With Teeth

Lee Chung returns from the Qing Empire after the death of his older brother, Crown Prince Lee Young. He is not introduced as a man itching to save his country. He would prefer a life with fewer royal obligations, fewer ministers and considerably fewer corpses. That reluctance is useful because Rampant works best when heroism feels like an inconvenience rather than an inherited personality trait.

On the road home he finds a country already being eaten from the edges. The infected are called “Night Demons”, or yagwi, and the name gives the film a little distance from the standard zombie vocabulary. Kim Sung-hoon has described them as creatures active at night and sensitive to sound, with transformation progressing differently from person to person. They bite, spread the condition and move with the frantic physicality that Korean zombie cinema became especially good at making unpleasant.

The creature work is one of the film’s strongest pleasures. The Night Demons do not simply run. They fold, spring, twitch and attack as though the body has been rewired badly but enthusiastically. Veins darken, faces distort, limbs become sudden weapons. The make-up does enough variation that the crowd never quite looks like the same extra copied twenty times, while the stunt work keeps the infected rooted in physical performance rather than turning the screen into weightless digital noise.

I did find myself doing the usual zombie-fan bookkeeping. How quickly does infection take hold? What actually stops one of these things? How strict are the rules about daylight, fire and physical damage? Rampant is not especially interested in presenting a neat survival manual. It establishes enough for a scene to work, then lets the choreography take over. That looseness bothered me slightly, mainly because zombie films train us to become irritating little accountants of cause and effect, but the film compensates by making the attacks clear, fast and properly dangerous.

Kim Sung-hoon’s Action Instinct

The film makes more sense when viewed through Kim Sung-hoon’s own description of what he was trying to build. In a Korean Film Council interview, he traced the idea back to a discussion about zombie-like creatures appearing in a royal palace. He wanted to give them a different identity as Night Demons, while using the outbreak to rub against questions of leadership and the social order around it.

He also talked about wanting the action to feel realistic, intense and three-dimensional, with fewer cuts than the familiar chopped-up sword-fight grammar. That intention shows. The good fights have geography. I can see where Lee Chung is standing, what is rushing towards him, how much space he has left and why a particular movement matters. Too much modern action is confetti with knives; Rampant, at its best, lets bodies occupy actual space.

The production notes collected by KoreanFilm.co.kr say filming ran from September 2017 to February 2018 and that the filmmakers built an Injeongjeon palace set at roughly one-and-a-half times actual scale for the large action sequences. The same notes describe a mixture of practical make-up, CG and production design used to create the Night Demons. That labour is visible on screen. The palace does not feel like a generic heritage backdrop waiting for actors to enter; it becomes a machine for the action, with courtyards, roofs, halls and corridors continually changing what the characters can do.

Hyun Bin and the Useful Charm of the Reluctant Prince

Hyun Bin is a large part of why the familiar arc still works. Lee Chung starts arrogant, amused and evasive, but never so empty that the eventual turn towards responsibility feels like a script note arriving late. He watches the gap between what the court says and what people outside the palace are actually living through, and irritation gradually becomes involvement.

There is also a physical confidence to the performance that the film depends on. Contemporary reports around the release noted that Hyun Bin handled a substantial amount of the stunt work himself, and the camera is willing to let him remain visible during the sword choreography. He is very skilled, but not so effortless that the swarms lose their pressure. Numbers, exhaustion and restricted space still matter.

His best work is not only in the sword scenes. The character becomes more interesting whenever he realises, with visible reluctance, that Joseon is becoming his problem. He does not move towards leadership because he has been dreaming of a crown. He moves because leaving the field means allowing worse men to decide what happens next. It is basic genre engineering, but Hyun Bin gives it enough hesitation to keep the mechanism from squeaking too loudly.

The Living Rot: Jang Dong-gun and the Court

Jang Dong-gun’s Kim Ja-joon gives the film the other kind of monster it needs. He is Minister of War, a man who thinks the collapse around him is not a warning but an opportunity. His menace is colder than the Night Demons because he understands delay, positioning and the usefulness of letting other people absorb the consequences first. The infected outside are immediate; Kim Ja-joon has the patience to make catastrophe administrative.

Kim Sung-hoon later described the character as someone whose wish to change the country curdles into power and self-justification. The film does not always give that idea enough room to deepen, but Jang helps. He plays Kim Ja-joon as a man who has rehearsed his own historical importance so thoroughly that he can no longer see the difference between reform and entitlement. It is not subtle, but subtlety is not really what the palace is doing by the final act.

Kim Eui-sung’s King Lee Jo completes the triangle. He does not have to become another supernatural creature for the court to feel rotten. Weakness, vanity and fear do enough work. This is one of the film’s better instincts: apocalypse rarely arrives in a healthy system. It finds the cracks already there and makes them impossible to decorate over.

The People Outside the Palace

The supporting players stop Rampant becoming only a contest between two famous men in expensive hats. Jo Woo-jin’s Park Jong-sa, Jung Man-sik’s Hak-soo, Lee Sun-bin’s Deok-hee and Jo Dal-hwan’s monk Daegil give the outbreak a life beyond the succession crisis. They are the people already trying to survive while the court is still deciding what version of reality it prefers.

Lee Sun-bin’s Deok-hee is especially welcome because competence is simply allowed to be part of her character. She can shoot, fight and make decisions without the film stopping to congratulate itself for noticing. Like most of the supporting cast, she could have used more space, but she helps the survival group feel like people who have been living with the emergency rather than waiting for the prince to arrive and start the plot.

That wider human scale matters because zombie stories need class pressure. If the plague only threatens nobles, it becomes a succession dispute with unusually poor skin. Rampant is sharper whenever it remembers that common people are the first to be bitten, ignored, blamed and left to clean up. The Night Demons do not create the kingdom’s failures; they expose them.

A Big, Handsome Genre Object

As a designer, this is probably where the film won me over most easily. Rampant gives me surfaces to read. Polished court interiors, worn fabrics, wet streets, ash, torch smoke, dark timber, pale royal clothing, blood on hanbok, bodies emerging from shadow. The production is substantial enough that the period setting never feels like a novelty costume hung over a zombie film.

The Korean Film Council credits Chae Kyung-sun with production design and Pee Dae-sung with special-effects make-up, among a much larger craft team. The production notes describe the Night Demons as creatures whose appearance changes over time, with different textures used for veins and artificial skin. It sounds like dry making-of material until you look at the faces. Then the labour is sitting there in every bruised vein and stretched patch of skin.

The night photography is crucial. A film built around creatures called Night Demons has no business looking flat, and thankfully it rarely does. Fire, moonlight and interior lamps carve the palace into pockets of safety and threat. Darkness is not simply a convenient place to hide the budget. It changes the rhythm of a scene. A corridor can hold nothing for ten seconds and then suddenly contain six very motivated corpses.

Where It Starts to Fray

The problem is not the concept. The concept is almost indecently easy to sell. The problem is that Rampant wants to be political horror, infection film, royal succession drama, reluctant-hero story, martial-arts showcase and palace siege in 121 minutes. Some of those things naturally elbow the others out of the way.

The political rot is present, but it is sketched more often than explored. Kim Ja-joon represents a recognisable hunger for control, yet the film gets impatient just when a little more time with his worldview might have made the final collision sting harder. The supporting characters are useful and often likeable, but several remain functions of the plot rather than people I know well. Lee Chung’s transformation also follows a familiar line: detached prince sees suffering, accepts responsibility and grows into the role history has been holding open for him.

This is where having seen Kingdom first is unfair but unavoidable. Kingdom could let dread linger in corridors and let policy become horror. Rampant needs to get everyone into position for the big night. It loses some thematic depth in the hurry, but it gains the uncomplicated pleasure of a properly mounted action climax. I would have liked more political poison in the bloodstream, but I cannot pretend I was bored when the palace started burning.

Finding It Late

I am glad I caught up with Rampant after the fact. Seeing it in 2026, after Train to Busan, Kingdom, #Alive and the later mutations of the Korean zombie cycle, makes it feel like a missing piece rather than an undiscovered masterpiece. That is not faint praise. Missing pieces are useful. They show how broad the wave really was: trains, apartments, royal courts, quarantines, biotech facilities, villages and cities, all using the infected body to talk about whatever social machinery happens to be nearby.

Rampant is not as emotionally devastating as Train to Busan, and it does not have Kingdom’s room for political menace. What it does have is a handsome period production, excellent physical creature work, sword fights with weight, two strong central performances and a palace full of people discovering that hierarchy becomes fairly theoretical once the biting starts.

The Crown, the Corpse, and the Burn Pile

What stayed with me was not a single twist so much as the image of a kingdom trying to preserve its hierarchy while the dead refuse to recognise rank. That is the old zombie joke underneath the new costume. The body does not care about title or bloodline. Infection does not stop at the palace gate because someone important lives there. Power can delay consequence, redirect it, rename it and hand it to someone poorer, but eventually the thing outside gets in.

Rampant understands that well enough to make the spectacle feel rooted in more than choreography, even when it does not push the idea as far as it could. I still wish the rules around the infected were tighter. I still think some characters needed another scene or two. I still prefer the slow institutional dread of Kingdom. But I also had a very good time with this one, which is sometimes all a two-hour night of swords, fire and aggressive dead people needs to accomplish.

So yes, I was late to Rampant. Annoyingly late. Zombie-fan-card-under-review late. There is something pleasing, though, about discovering that the pile still contains one you missed: a prince who would rather be elsewhere, a minister who thinks catastrophe can be managed, a court pretending it is still in charge, and a night that keeps getting hungrier.

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