The Gangster, The Cop, The Devil (2019): A Glossy Korean Thriller with Blood on its Hands

The Gangster, The Cop, The Devil (2019)
Directed by: Lee Won-tae
Written by: Lee Won-tae, Jung Seo-kyung
Starring: Ma Dong-seok, Kim Mu-yeol, Kim Sung-kyu
Release Date: May 15, 2019 (South Korea)
Available on: Amazon Prime Video, Apple TV

Most thrillers today are half-hearted. They shuffle onto the screen wearing the costume of “neo-noir,” but behind the façade you find the same threadbare Hollywood tricks: endless CGI car chases, sarcastic one-liners, and the kind of action that never risks dirtying anyone’s suit. The Gangster, The Cop, The Devil is different. It feels like a glossy crime drama of the 1960s—something Jean-Pierre Melville or Francesco Rosi might have directed—but polished to a neon shine and then drenched in violence far too brutal for that earlier age. It is part classic thriller, part blood-soaked morality play, and wholly Korean in its ferocity.

The story is simple enough: a gangster and a cop form an uneasy alliance to catch a serial killer. But it is the execution, not the premise, that makes the film. Jung Tae-seok (Kim Mu-yeol) is the cop: ambitious but frustrated by the limits of working within the law. Jang Dong-soo (Ma Dong-seok) is the gangster: a crime boss with fists like sledgehammers and a sense of honour as bruised as his knuckles. And Kang Kyung-ho (Kim Sung-kyu) is the devil: a serial killer who stabs strangers without any purpose beyond the thrill of killing.

From the opening minutes, the tone is clear. The killer attacks at random, a man walking home one night, his fate sealed in a few savage thrusts of a blade. The randomness is what makes it terrifying. This is not a villain in the Hollywood mould, who lectures about his motives or arranges bodies in artistic patterns. Kang Kyung-ho doesn’t posture. He doesn’t explain. He stabs. He leaves corpses behind and moves on, as meaningless and as brutal as a storm drain overflowing after the rain.

Into this chaos comes Ma Dong-seok. He is one of the great stars of Korean cinema, and this role is another confirmation of his dominance. Unlike the hollow “action heroes” of Hollywood—men who look carved from wax and move like choreographed mannequins—Ma brings menace and surprising depth. He looks like a man who could punch through a wall, and on screen, he does something close. But behind the bulk, he lets us see flashes of something more complicated. His Jang Dong-soo is not a noble gangster in the Hollywood fantasy style, nor a simple brute. He is a man who has lived by violence, and who expects to die by violence, but who begins to discover that there is such a thing as evil that even he cannot shrug off.

There is a scene early on where he survives the killer’s attack. Most films would show this as a triumph of strength or luck. Here, it is ugly. He bleeds and stumbles. He barely survives. And that survival awakens something: not just a desire for revenge, but a recognition that a predator has entered his world, one whose chaos threatens the fragile order he has built in blood. The film slowly builds this theme: the crime lord, long past caring about morality, begins to grow a moral sense, because he meets an enemy who has none.

Opposite him is Kim Mu-yeol as Detective Jung Tae-seok. If Ma is a force of nature, Kim is precision and restraint. He plays the role as a man suffocated by procedure, by the knowledge that his world is rotting and his superiors are useless. He wants results, not reports. Pairing him with Ma is inspired. Where Ma looms, Kim prods and needles. Their exchanges crackle with energy: the detective despises the gangster’s arrogance; the gangster mocks the detective’s weakness. Yet each knows he cannot bring down the killer without the other.

The killer himself, Kang Kyung-ho, is played by Kim Sung-kyu with unnerving restraint. He is not a Hannibal Lecter, nor a cartoon villain. He does not revel in performance. He simply kills, his expression blank, his body language casual. That is what makes him frightening. There is a sequence in an underground car park where he stalks his victim, knife glinting under the fluorescent strip lighting. He doesn’t look like a man on a mission. He looks like a man out for a stroll. And then the blade flashes, and the victim is gone. In that moment, Kim shows the emptiness at the heart of evil: no grand design, just blood for the sake of blood.

Violence in this film is not stylishly sanitised. It is sickening. Bones crack. Knives slide into flesh with a wet thud. Punches leave faces swollen and broken. The choreography is crisp but never pretty. There is no slow-motion ballet, no operatic flourishes. Instead, every blow feels heavy, every stabbing leaves you wincing. It is a reminder that violence is not an aesthetic but a fact: brutal and permanent. If Hollywood remade this—and apparently Sylvester Stallone has been circling a remake—you can be certain they would sand off every edge, leaving only glossy surfaces and dull heroics. The Koreans, by contrast, let violence look like what it is.

And yet the film is beautiful. The cinematography is immaculate. Neon light reflects off wet streets. Cars roar through alleys that seem both timeless and modern. The interiors of gangster offices, police stations, and dingy bars all feel lived in, heavy with smoke and sweat. It has the polish of a high-end commercial, but every frame pulses with menace. This is style used not to hide, but to heighten. The city becomes a stage where morality is contested, where cop and gangster must bend or break if they want to survive the devil in their midst.

The pacing is relentless. At just under two hours, it wastes no time. There are no indulgent subplots, no romantic diversions, no unnecessary humour. It is stripped down to conflict: gangster against cop, both against killer, and each against himself. By the climax, when the hunt closes in, the tension is not about whether the killer will be caught—he must be—but about what compromises the gangster and the cop will accept along the way.

That is the film’s most compelling idea. It is not a morality tale in the Western sense. It does not say crime is bad and the police are good. It says: here is a world where order is fragile, where men are forced to make alliances with those they despise, because the alternative is worse. The gangster is not redeemed, the cop is not sanctified, and the killer is not explained away. Instead, we are left with the uneasy knowledge that morality is not a fixed point but a balance of forces. Sometimes it takes a gangster to catch a devil.

Ma Dong-seok’s performance is the anchor. He gives the film its weight, its heart, and its menace. Kim Mu-yeol sustains the tension with his sharp, disciplined counterpoint. Kim Sung-kyu chills with his refusal to turn evil into theatre. And Lee Won-tae directs with elegance and brutality in equal measure.

If you want to see what modern cinema can be when it stops pandering to mediocrity, watch The Gangster, The Cop, The Devil. It is proof, once again, that South Korea is making films that leave Hollywood looking like a bloated corpse: glossy on the outside, empty within. Here, at least, the gloss is backed by blood and moral weight.