Burning — Ending Explained

After Hae-mi disappears, Jong-su becomes obsessed with uncovering what happened to her. He spends his mornings running through rural Paju, checking plastic greenhouses to see if any have been burned down, as Ben claimed. None are destroyed. Realizing that Ben meant something else by "greenhouses," Jong-su begins following Ben around Seoul.

Jong-su visits Ben's apartment and searches his bathroom, discovering a hidden drawer containing various trinkets and jewelry from different women, including Hae-mi’s inexpensive pink watch. Later, Jong-su encounters a stray cat in Ben's apartment garage. When Jong-su calls out "Boil"—the name of Hae-mi's missing cat—the cat runs into his arms, providing further circumstantial evidence. Soon after, Ben introduces a new, naive young woman to his friend group, and Jong-su watches as Ben paints her face, signaling that he has selected his next victim.

Jong-su arranges a final meeting with Ben in a desolate, snow-covered rural location under the guise of an urgent conversation. Ben arrives alone in his Porsche. Without warning, Jong-su stabs Ben repeatedly in the stomach. A bleeding Ben embraces Jong-su before dying. Jong-su drags Ben's body into the Porsche, strips off all his own blood-stained clothes, throws them into the vehicle with the corpse, douses everything in gasoline, and sets it ablaze. As the car bursts into flames, a naked Jong-su drives away into the freezing twilight in his rusty truck, looking back at the burning wreck.

Hidden meanings become clearer after this climax: Ben's statement that "greenhouses are waiting to be burnt" reflected his view of discarded, lonely women who have no strong social support, making them easy targets. However, whether Ben literally murdered Hae-mi or whether Jong-su projected his own resentment onto Ben remains deliberately open to interpretation, leaving the viewer to decide if the final act was real revenge or a fictional story created by an aspiring writer.

1. Ben is a Literal Serial Killer (Crime Thriller Reading): In this interpretation, Ben lures isolated, lower-class women, murders them, and keeps trophies in his bathroom drawer. The "greenhouse" is a metaphor for vulnerable women. Ben murdered Hae-mi, took her cat Boiler, and kept her pink watch. Jong-su’s final violent act is an execution of justice based on his findings.

2. The Novelist's Fiction (Meta-Narrative Reading): In this reading, the second half of the film—or at least the violent climax—takes place entirely inside Jong-su’s imagination as he writes his novel. After Hae-mi vanishes, Jong-su sits down at her desk in her empty apartment and begins typing on his laptop. The murder of Ben is a fictional, cathartic outlet for his economic frustration, jealousy, and inability to save Hae-mi.

3. Misguided Paranoia & Tragic Misinterpretation (Existential Reading): Here, Hae-mi ran away or committed suicide due to her debts and depression. Ben's talk about greenhouses was purely a mind game or literal hobby, the pink watch in his drawer was a common accessory, and the cat was a coincidence. Driven by grief, jealousy, and class resentment, Jong-su convinces himself of Ben's guilt and murders an innocent man.