The Penthouse (Season 3) (2021) official poster
📺 K-Drama Guide · Drama · Mystery · Thriller

The Penthouse (Season 3)

펜트하우스3 · 2021
✅ Completed · 14 eps 🎬 SBS · Viki ⭐ 8.2 / 10 MDL 🔞 TV-14
⚡ Updated · Aug 27, 2026

📋 Drama Overview

A quick primer before the opening scene.

The Penthouse (Season 3) (2021) official poster
CompletedREVENGE SAGA FINALE PICK
The Penthouse (Season 3)
펜트하우스3 (Penteuhauseu 3) · 2021 · South Korea
WriterKim Soon-ok
DirectorJoo Dong-min
Episodes14 eps · ~75 min each
Where to Watch✅ Viki
⏱️
Binge Time17h 30m
AiredJun 4 – Sep 10, 2021
GenreDrama · Mystery · Thriller
Content RatingTV-14

SBSViki
RevengeChaebolMurder MysteryFamily SecretsMelodrama

Season 2 ended with Su-ryeon walking through her own reclaimed penthouse, throwing out everything Dan-tae and Seo-jin left behind. Season 3 picks up the war that promise started — except now Dan-tae and Seo-jin are married to each other and behind bars, treating prison as a temporary inconvenience their money will fix, right up until Su-ryeon watches Logan die in front of her and decides exactly who’s responsible.

What follows is the trilogy’s fastest teardown yet: a redevelopment war that exposes Dan-tae’s overreach, a biological-daughter reveal that turns Su-ryeon’s careful plotting personal, and a finale that finally sends Hera Palace itself up in an actual explosion. Fourteen episodes is the shortest season of the three, and it spends every one of them making sure nobody who did something unforgivable in Seasons 1 or 2 gets to walk away from Season 3 clean.

Episode Progress 14 / 14 ✅ Completed

⚡ Quick Verdict

No scrolling required — the verdict’s right here.

⭐ Worth it?Absolutely — the trilogy’s most explosive and conclusive chapter
⏱️ Commitment14 episodes · ~75 min each
💛 VibeEvery scheme collapses at once, and Hera Palace goes down with it
📺 Skip if…You need Su-ryeon’s fate spelled out explicitly by the credits

⭐ 8.2 / 10 · MDL Score · 24,042 ratings

▶ Official Trailer

🎭 Cast & Characters

Hera Palace burns, and everyone finally pays for it.

Lee Ji-ah as Shim Su-ryeon in The Penthouse (Season 3) (2021)
Lee Ji-ah
Shim Su-ryeon

Lead

Kim So-yeon as Cheon Seo-jin in The Penthouse (Season 3) (2021)
Kim So-yeon
Cheon Seo-jin

Lead

Eugene as Oh Yoon-hee in The Penthouse (Season 3) (2021)
Eugene
Oh Yoon-hee

Supporting

Park Ho-san as Yoo Dong-pil in The Penthouse (Season 3) (2021)
Park Ho-san
Yoo Dong-pil

Supporting

Uhm Ki-joon as Joo Dan-tae in The Penthouse (Season 3) (2021)
Uhm Ki-joon
Joo Dan-tae

Supporting

Shin Eun-kyung as Kang Ma-ri in The Penthouse (Season 3) (2021)
Shin Eun-kyung
Kang Ma-ri

Supporting

On Ju-wan as Baek Joon-ki in The Penthouse (Season 3) (2021)
On Ju-wan
Baek Joon-ki

Supporting

Bong Tae-gyu as Lee Gyu-jin in The Penthouse (Season 3) (2021)
Bong Tae-gyu
Lee Gyu-jin

Supporting

Yoon Jong-hoon as Ha Yoon-chul in The Penthouse (Season 3) (2021)
Yoon Jong-hoon
Ha Yoon-chul

Supporting

Park Eun-seok as Logan Lee in The Penthouse (Season 3) (2021)
Park Eun-seok
Logan Lee

Supporting

Yoon Joo-hee as Go Sang-ah in The Penthouse (Season 3) (2021)
Yoon Joo-hee
Go Sang-ah

Supporting

Ha Do-kwon as Ma Doo-gi in The Penthouse (Season 3) (2021)
Ha Do-kwon
Ma Doo-gi

Supporting

🍿 Where to Watch

Stream The Penthouse (Season 3) on these platforms.

📺 Episode Guide

Spoiler-light recaps — enough to remember where you left off, nothing that ruins the ride.

The Penthouse (Season 3) Episode 1 — What Su-ryeon Saw EP 01
What Su-ryeon Saw
Jun 4, 2021
Season 3 opens on borrowed calm: Su-ryeon gets a rare stretch of normal time with Seok-hoon and Seok-kyung, though Seok-kyung resents how much of that warmth goes to Ro-na instead. Behind bars, newlyweds Dan-tae and Seo-jin treat prison like a temporary inconvenience their money will buy them out of. Then the season delivers its real opening shot — Su-ryeon watches Logan die in front of her, and every instinct points straight at Dan-tae.

The Penthouse (Season 3) Episode 2 — Released, Not Forgiven EP 02
Released, Not Forgiven
Jun 11, 2021
Seo-jin walks out of prison and goes straight to Eun-byeol, only to be met with a daughter who can’t look at her — a rejection she’s never had to sit with before. She answers it the only way she knows how: clawing back everything Dan-tae and her own stepmother have taken from her. The next generation gets its own cruelty on display too, as Seok-kyung corners Jenny with a message timed to rattle her right before her entrance exam.

The Penthouse (Season 3) Episode 3 — The Truth About Dan-tae EP 03
The Truth About Dan-tae
Jun 18, 2021
Su-ryeon steps between Joon-ki and Dan-tae just before a bullet gets fired, saving a man she has every reason to want dead herself, because Seok-kyung is standing too close. What Joon-ki tells her afterward reframes the season — the real story behind Dan-tae’s identity, and what actually happened to Logan. Meanwhile the Hera Palace residents start quietly accusing Yoon-hee of pocketing Logan’s ten-billion-dollar inheritance under Seol-ah’s name.

The Penthouse (Season 3) Episode 4 — Getting Too Close EP 04
Getting Too Close
Jun 25, 2021
Yoon-hee clocks almost immediately that Dong-pil is covering for Dan-tae, and once she starts pulling on that thread, Dan-tae stops treating her as an annoyance and starts treating her as a problem to remove. It’s the first time this season the threat against her feels genuinely lethal. Elsewhere, Ro-na and Seok-hoon try to hold Eun-byeol together as Boon-hong’s obsession with the girl curdles into something closer to fixation.

The Penthouse (Season 3) Episode 5 — What Dong-pil Was Told To Do EP 05
What Dong-pil Was Told To Do
Jul 2, 2021
Yoon-hee’s body turns up, and the person who finds it is Dong-pil — who drops to his knees begging Dan-tae for his life the second he realizes what he’s stumbled into. Dan-tae’s answer is chillingly practical: make the body disappear, and keep quiet about how. The same day, Boon-hong holds a press conference at Dan-tae’s direction, spinning the story so Yoon-hee looks like a kidnapper instead of a victim — erasing her a second time before anyone even knows she’s dead.

The Penthouse (Season 3) Episode 6 — An Accusation From the Hospital Bed EP 06
An Accusation From the Hospital Bed
Jul 9, 2021
Seo-jin gets handed the director’s chair at the Cheong-A Arts Center, a win that shrinks fast once Eun-byeol wakes up in the hospital and accuses her own mother of killing Yoon-hee to her face. Ma-ri makes her allegiance explicit, telling Su-ryeon she’s in for whatever takedown of Dan-tae is coming next. And Su-ryeon finally pieces together what Yoon-hee was trying to say in her last moments.

The Penthouse (Season 3) Episode 7 — The Redevelopment War EP 07
The Redevelopment War
Jul 16, 2021
The fight over who controls the Cheonsu District redevelopment turns into a lobbying war between Cheong-A and Dohae Construction, with neither side willing to concede an inch. Dan-tae, convinced his scheme is airtight, goes back to Seo-jin for even more capital — a request that says more about his overconfidence than his strategy. When the plan doesn’t land as expected, he gambles even bigger to cover the shortfall, the first real crack in a man who’s acted untouchable for two seasons.

The Penthouse (Season 3) Episode 8 — The Daughter She Never Knew EP 08
The Daughter She Never Knew
Jul 30, 2021
Su-ryeon spirals when she learns Seok-kyung — the daughter she’s spent the season quietly parenting alongside Seok-hoon — is actually her own biological child, and that Dan-tae may never have sent her to Italy at all. Seok-hoon plays his own long game, convincing his father he wants to take over the family business just to get close enough to dig for proof. It’s a rare bright spot when Ro-na shines at the Cheong-A Arts Residence audition, untouched by any of it.

The Penthouse (Season 3) Episode 9 — Logan Is Alive EP 09
Logan Is Alive
Aug 6, 2021
Dan-tae and Seo-jin toast their own cleverness for pinning Logan’s supposed death on Su-ryeon, but the celebration is hollow — both know exactly how little time they have before the other one turns. Then the season pulls its second big reversal: Logan is alive, and he finds his way back to Su-ryeon to tell her everything. With Yoon-chul now willing to help instead of look away, the three of them make it official — Seo-jin and Dan-tae are finally going to pay.

The Penthouse (Season 3) Episode 10 — Turning the Tables EP 10
Turning the Tables
Aug 13, 2021
With Logan confirmed alive and Yoon-chul on board, Su-ryeon finally has the numbers to make her move — recruiting Ma-ri, Dong-pil, and even Joon-ki and Boon-hong into a plan to bankrupt Dan-tae and Seo-jin at once. Evidence gets thrown in their faces piece by piece, each designed to turn them against each other rather than unite them. It works exactly as intended: Seo-jin and Dan-tae stop scheming together and start fighting each other just to survive.

The Penthouse (Season 3) Episode 11 — Cornered EP 11
Cornered
Aug 20, 2021
Dan-tae tries to slip out of the country by boat, playing fugitive one more time, but wakes up confined and impersonating Joon-ki instead of escaping anything. Seo-jin’s position collapses just as fast — new evidence suggests she’s the one who killed Yoon-hee, and before she can spin her way out of it, Su-ryeon and Logan abduct her outright. Everything she’s built starts caving in during a single episode, with no bribe waiting to save her this time.

The Penthouse (Season 3) Episode 12 — The Act EP 12
The Act
Aug 27, 2021
Seo-jin survives her abduction and recovers in the hospital, but Su-ryeon isn’t buying the fragile, disoriented performance she’s putting on for the doctors — she’s convinced it’s exactly that, a performance. Loan sharks start circling her bed regardless, and it’s Eun-byeol, not her mother, who fights them off. Dan-tae, meanwhile, stages his own escape from a Japanese mental hospital and immediately calls Seok-hoon — expecting family loyalty he never earned.

The Penthouse (Season 3) Episode 13 — Hera Palace Falls EP 13
Hera Palace Falls
Sep 3, 2021
Su-ryeon finally gets her hands on Dan-tae and sends him plummeting off the building he spent two seasons treating as untouchable — except he’s already rigged Hera Palace to go down with him, and it does, in a genuinely massive explosion. Logan pulls Su-ryeon out just in time, and they turn straight to their last target: Seo-jin. Yoon-chul, meanwhile, realizes what Su-ryeon already suspected — Seo-jin’s dementia was never real.

The Penthouse (Season 3) Episode 14 — Three Years Later EP 14
Three Years Later
Sep 10, 2021
The finale takes Su-ryeon over a cliff and doesn’t bring her back up — rescuers search and come back with nothing, closing three seasons of a woman who survived everything except, apparently, this. Seo-jin finally stands trial for Yoon-hee’s murder, and it’s Eun-byeol’s testimony against her own mother that lands the hardest blow. Then the show jumps three years forward, to Ro-na and Seok-hoon’s recital, where Logan sees a woman who looks exactly like Su-ryeon and runs after her.

🏁 Ending Explained

Full spoilers from this point — what happened, and why.

⚠️ Spoiler Warning — This section covers the full finale of The Penthouse (Season 3). Stop here if you haven’t finished the series.

The ending never actually confirms whether Su-ryeon is dead The literal answer is: nobody knows, including the show. Su-ryeon goes over the cliff in the finale’s climax, rescuers search the water and find nothing, and the story simply moves on to Seo-jin’s trial without ever producing a body, a rescue, or a death certificate. That ambiguity isn’t a loose thread the writers forgot to tie off — it’s a deliberate hedge, left open by a production that had already been fielding questions about a potential continuation.

The Penthouse (Season 3) (2021) — Su-ryeon's fate is left unresolved in the Season 3 finale

It’s a frustrating way to close out three seasons built almost entirely around Su-ryeon’s specific, driven vengeance, and a lot of viewers understandably wanted a harder answer than “presumed gone.” But it’s consistent with a show that has already resurrected a dead woman once — Su-ryeon spent all of Season 2 alive and hiding as Ae-gyo — so leaving the door open here reads less like an accident and more like the trilogy refusing to let its own rulebook close.

Eun-byeol’s testimony is the real ending — not Su-ryeon’s cliff dive Whatever happens to Su-ryeon physically, the emotional ending of Season 3 belongs to Eun-byeol, who takes the stand and testifies against her own mother for the murder of Oh Yoon-hee. That’s the finale’s actual thesis: the children of Hera Palace, who spent three seasons being shaped, manipulated, and lied to by their parents, are the ones who finally hold them accountable. Seok-hoon’s slow break from Dan-tae, Ro-na surviving where her mother didn’t, Eun-byeol choosing the truth over her mother’s freedom — the next generation is where this story actually resolves.

The Penthouse (Season 3) (2021) — Eun-byeol testifies against her mother in court

It also reframes everything Seo-jin did across three seasons to protect her image in front of Eun-byeol specifically — all of it collapses the moment her daughter decides the truth matters more than loyalty. Seo-jin spent the franchise treating Eun-byeol as an extension of her own status; the courtroom is where that finally, permanently stops working.

The KDW verdict Season 3 answers everything the trilogy set up — Dan-tae dead, Seo-jin exposed, Hera Palace literally gone — while deliberately leaving its own protagonist’s fate unresolved, and that split is exactly why reactions to this finale are so divided. It’s a satisfying ending for the villains and a genuinely unsatisfying one for the woman whose grief started the whole story, which reads as either a bold choice or an unfinished one depending on how much closure you came here for.

The Penthouse (Season 3) (2021) — The Penthouse Season 3 series finale

✍️ KDramaWorlds Editor’s Take

Straight talk — our real opinion, and the viewer it’s made for.

💥 Hera Palace Falls ⚖️ The Kids Testify 👻 Is She Really Gone? 🏚️ Nobody Gets Away With It

Three seasons in, the real achievement of Season 3 is that Kim So-yeon and Uhm Ki-joon still find new registers to play as Seo-jin and Dan-tae unravel — Seo-jin’s slide from untouchable arts-world queen to a woman faking dementia in a hospital bed, Dan-tae’s from real-estate god to a man literally impersonating his own would-be assassin. It’s the kind of slow, escalating villain collapse that made The Escape of the Seven so satisfying too — watching people who built entire identities on lies run out of road, one scheme at a time.

The Penthouse (Season 3) (2021) — cinematic still

The finale’s choice to leave Su-ryeon’s fate genuinely unresolved is the most divisive thing about it, and it’s worth sitting with rather than dismissing outright — Wonderful World pulled a similarly bittersweet trick with its own mother’s-revenge ending, closure for the villains but not necessarily peace for the woman who earned it. Whether that reads as thematically honest or just avoidant probably depends on how much you needed Su-ryeon specifically to get a clean final scene.

Fourteen episodes is the shortest season of the trilogy, and it uses that runtime to burn through plot at a pace the first two seasons never attempted — a literal building explosion by episode 13 tells you everything about how little patience this finale has left. It’s not the most emotionally graceful ending The Penthouse could have written, but as a demolition of everyone who spent three seasons thinking they’d gotten away with it, it’s hard to argue it doesn’t deliver.

👍👍👍 BEST FOR 👍👍👍
🔥 Anyone who wants every scheme from the last two seasons to finally collapse at once 👑 Fans who came for Kim So-yeon and Uhm Ki-joon’s performances and want to see them pushed even further ⚖️ Viewers okay with an ending that prioritizes justice for the villains over closure for the hero

⚖️ Final Verdict
What works
Kim So-yeon and Uhm Ki-joon’s villain arcs finally get the collapse three seasons of scheming were building toward
Fourteen tightly paced episodes that don’t waste time getting to the reckoning
Eun-byeol’s courtroom testimony gives the trilogy’s next generation real narrative weight

What to know first
Su-ryeon’s fate is left deliberately ambiguous — don’t expect a clean final scene for the protagonist
The three-years-later epilogue raises a new question instead of closing the story outright
Direct continuation of Seasons 1 and 2 — do not start here

8.2 / 10— The trilogy’s most explosive chapter, one that finally makes every villain pay even if it won’t say for certain what happens to the woman who made them.

💬 Helpful? Share this guide →

KDW Editor Editorial Team, KDramaWorlds

This review was written and fact-checked by the KDW editorial team — a small group of K-drama viewers who watch every title before writing about it. No screeners, no synopsis-only takes.

604 Reviews Published
339 Actor Profiles
2026 Writing Since
More about the KDW Editorial Team

Share your reaction to this drama.

You can pick up to 3 reactions.

Before You Comment

Keep it kind, skip the harsh language, and please — no spoilers. Everyone's taste is different, and that's perfectly fine.

This space is for real reactions and discussion from other viewers. Help keep it comfortable for everyone by not giving away major plot details.