Ji Sung's 'Apartment' Takes Over the Weekend with an Unforgettable Villain Exit and a Tense New Standoff

JTBC's weekend drama Apartment opened to a modest 6% ratings figure, but by episode 6 it had climbed to number one across every broadcast and cable channel in its time slot, a turnaround that has the Korean TV industry taking notice.

Episode 6, which aired on July 26, pulled together the three things that make a drama appointment viewing: a tightly constructed script, actors performing at full capacity, and direction with a real sense of timing. The results showed not just in domestic ratings but in global reach, episodes 1 and 2 had already debuted at number one on Netflix Korea's Top 10 Series chart, and the show placed fourth on GoodData Corporation's integrated TV and OTT buzz index.

What the show is actually about

Apartment follows Park Hae-gang (Ji Sung), a former crime boss who throws his name into the ring for the residents' association chair election at an apartment complex, not out of civic spirit, but to get his hands on a large sum of hidden money buried somewhere on the property. What develops is a grounded, often sharply funny human drama about corruption, community, and what people will do when they think nobody's watching.

Ji Sung anchors the whole thing with a performance that keeps Park Hae-gang readable without ever making him safe. The pacing helps too: Apartment moves at a clip that trusts the audience to keep up.

Baek Hyun-jin's villain exit

The performance drawing the most attention this week belongs to Baek Hyun-jin, who plays Seo Gang-won, the former residents' association chair still scrambling for relevance after Park Hae-gang takes his seat. Watching Seo Gang-won operate is genuinely unsettling, he cycles between desperation and menace in a way that feels lived-in rather than staged, and Baek navigates that emotional range without tipping into caricature.

Through episode 6, Seo Gang-won had been quietly maneuvering: kneeling to antagonist Lee Chung-won (Park Byung-eun) when he needed backing, then gathering intelligence on vulnerable fellow board members to build a counter-coalition against Park Hae-gang. In public meetings he projected cold authority, blocking Park Hae-gang's proposals with the composed ease of someone who still believes he's untouchable.

He was wrong. Park Hae-gang exposes Seo Gang-won's long-running embezzlement of heating fees at a community meeting, and the fallout is immediate and brutal. Lee Chung-won, furious at the betrayal, attacks Seo Gang-won, leaving him unconscious. The episode closes on an image of a sapling being planted over a patch of disturbed earth: a strongly implied burial. It is the kind of scene that has viewers rewatching the final minutes frame by frame.

The response online has been warm and specific, with viewers calling Baek's performance one of the season's best supporting turns, praising his ability to make Seo Gang-won's collapse feel inevitable in hindsight, even as every scene kept you guessing his next move.

Episode 7 preview: Ji Sung and Park Byung-eun, alone in a room

The setup for episode 7 (airing August 1 at 10:40 p.m. KST) centers on a private meeting between Park Hae-gang and Lee Chung-won in the dimly lit association chair's office. The two arrive with entirely different agendas and full awareness that the other is not to be trusted.

In episode 6's final turn, Park Hae-gang had shown up at Lee Chung-won's door and, knowing that Lee Chung-won was already aware of his artifact fraud scheme, offered to become his subordinate instead of continuing as an adversary. It's the kind of move that reframes everything you thought you understood about where the show was heading.

The preview for episode 7 shows the two men exchanging what the production describes as a "blade smile", surface warmth, obvious threat underneath. Park Hae-gang pitches something unexpected; Lee Chung-won stares back trying to figure out where the trap is. Whether a genuine (if dangerous) alliance forms around the missing reserve funds, or whether both men are simply buying time, is the question the episode will answer.

Behind the scenes, the production has noted that Ji Sung and Park Byung-eun locked into their characters almost immediately at rehearsal, the tension in those scenes apparently requires very little setup once both actors are in position. Off-camera, the report goes, they are warm and attentive with each other, which tends to be exactly the dynamic that produces the most convincing on-screen coldness.

Apartment airs on JTBC on Saturdays and Sundays. Episode 7 broadcasts August 1 at 10:40 p.m. KST.