Climax isn’t just the hottest K-drama of Spring 2026 — it’s a masterclass in betrayal. Within four episodes, this ENA Monday-Tuesday thriller has hit No. 1 on Disney+’s Korean chart, climbed from 2.9% to 3.87% in viewership ratings, scored 8.3 on IMDb, and generated more online buzz than any new Korean drama this year.
If you’re late to the party, this is your complete guide — every character, every twist, every secret, and what we think is coming next.
What Is Climax About?
Climax (Korean: 클라이맥스) is a 2026 South Korean political thriller drama that premiered on March 16, 2026 on ENA. Directed and co-written by Lee Ji-won (with Shin Ye-seul), the series follows prosecutor Bang Tae-seop, who enters a deadly power cartel involving conglomerates, politicians, and the entertainment industry — all to reach the top of Korean politics.
The drama airs every Monday and Tuesday at 10:00 PM KST on ENA, with international streaming on Disney+ and Viki. A total of 10 episodes are planned, with the finale scheduled for April 15, 2026.
Genre: Political Thriller, Crime, Noir, Melodrama
Network: ENA
Streaming: Disney+ (Korea/Asia), Viki (worldwide)
Episodes: 10
Premiere: March 16, 2026
Finale: April 15, 2026 (scheduled)
Ratings: 2.9% → 3.87% (Episodes 1–4, Nielsen Korea)
IMDb: 8.3/10
Meet the Cast
Ju Ji-hoon as Bang Tae-seop (Prosecutor)
Ju Ji-hoon is one of Korea’s most versatile actors. He first captured hearts as the crown prince in Princess Hours (2006), the drama that helped launch the global Hallyu wave. He reinvented himself with critically acclaimed performances in Mask (2015) and became an international name through Netflix’s zombie epic Kingdom (2019–2020). He won Best Actor at the SBS Drama Awards for Hyena (2020), Best Actor at the Chunsa Film Art Awards for Dark Figure of Crime (2018), a Popularity Award at the Blue Dragon Film Awards for The Spy Gone North (2018), and most recently, Best Actor at the prestigious 61st Baeksang Arts Awards for The Trauma Code: Heroes on Call (2025). In Climax, he plays Bang Tae-seop, a prosecutor born into poverty who will manipulate, blackmail, and betray anyone — including his own wife — to reach the top.
Ha Ji-won as Chu Sang-ah (Actress / Tae-seop’s Wife)
Ha Ji-won is a living legend of Korean drama. Over a career spanning more than 25 years, she has become one of the most decorated actresses in the industry. She broke through with the action sageuk Damo (2003), became a household name with Something Happened in Bali (2004) and Hwang Jini (2006), and her role as Gil Ra-im in Secret Garden (2010–2011) remains one of the most iconic performances in K-drama history. She won the Grand Prize (Daesang) at the MBC Drama Awards for Empress Ki (2013) — the highest honor in Korean television drama. Her career spans 27 award wins and 28 nominations. In Climax, she plays Sang-ah, a former top actress hiding a traumatic past, trapped in a marriage built on lies.
Nana (Im Jin-ah) as Hwang Jeong-won (Informant / Broker)
Before she was an actress, Nana was named the “World’s Most Beautiful Face” by TC Candler in both 2014 and 2015. A former member of K-pop group After School, she transitioned into acting with The Good Wife (2016) and Kill It (2019), and won the Excellence Award at the KBS Drama Awards for Memorials (2020). In Climax, she plays Hwang Jeong-won, Tae-seop’s secret informant who infiltrates the power elite — a role showcasing her action skills and cold intelligence. Korean media calls her performance “worthy of a Hollywood spy film.”
Oh Jung-se as Kwon Jong-uk (Conglomerate Heir)
Oh Jung-se is one of Korea’s most respected character actors. His breakthrough came with When the Camellia Blooms (2019), earning him Best Supporting Actor at the KBS Drama Awards. He then delivered a career-defining performance as Moon Sang-tae in It’s Okay to Not Be Okay (2020), winning Best Supporting Actor at the 57th Baeksang Arts Awards. In Climax, he plays Kwon Jong-uk, the eldest son of Korea’s third-largest conglomerate, who allies with Tae-seop to destroy his scheming stepmother Yang-mi.
Cha Joo-young as Lee Yang-mi (Power Broker / Chairman’s Wife)
Cha Joo-young gained widespread attention as an antagonist in the mega-hit The Penthouse (2020–2021), and has appeared in Cheese in the Trap (2016), Jugglers (2017), and Wok of Love (2018). In Climax, she plays Lee Yang-mi, the second wife of the WR Group chairman, who controls a shadow network of politicians and celebrities through sexual favors and blackmail. Her commanding screen presence has made Yang-mi one of 2026’s most talked-about villains.
Episode 1 Recap: “The Trap”
The series opens with a devastating flash-forward: Bang Tae-seop drives alone, replaying a violent fight with his wife Sang-ah. She accused him of marrying her only to fulfill his ambitions. He pinned her against the wall and forcefully kissed her. We see a bloody Sang-ah walking away from what appears to be a crime scene, exchanging a loaded look with Jeong-won. Then Tae-seop is shown digging a grave on a hillside. Finally, Sang-ah gives a statement at a police station, clearly broken.
These opening minutes tell us one thing: this story does not end well for anyone.
We then rewind to the beginning. Tae-seop is the son of a factory union leader who was framed on bribery charges and killed himself in prison. Tae-seop became a prosecutor to take revenge on the system, but the elite kept the doors closed. His radical solution: marry Chu Sang-ah, the biggest female star in Korea, to gain social capital.
It worked — briefly. Then Sang-ah got caught in a tax evasion scandal and was cancelled. Tae-seop was back to square one.
His next move comes when he learns that Mayor Nam Hye-hyoon is “untouchable” because of her friendship with Lee Yang-mi. Yang-mi, the second wife of Korea’s third-largest conglomerate chairman, runs a shadow operation: she uses actors and actresses to perform sexual favors for politicians, building a web of blackmail and influence.
Yang-mi approaches Sang-ah with a deal: help convince rising actor Bae Yun-seong to sleep with Mayor Nam, and Yang-mi will back Sang-ah’s comeback. Sang-ah is horrified — this mirrors her own traumatic past — and refuses. Yang-mi threatens to destroy her.
Tae-seop recruits Hwang Jeong-won (Nana) as his informant and strikes a deal with Kwon Jong-uk (Oh Jung-se), the chairman’s eldest son who wants his stepmother Yang-mi removed. Tae-seop promises to take down Yang-mi through Mayor Nam; in return, Jong-uk will back Tae-seop’s political career.
On the night of the operation, Tae-seop, Jeong-won, and an associate infiltrate the WR Hotel, planting a listening device in Mayor Nam’s room. Sang-ah races to the hotel to stop Yun-seong but suffers a panic attack — triggered by memories of being forced to perform sexual favors by her own former CEO. Yun-seong insists on proceeding.
On her way out, Sang-ah runs into Tae-seop at the elevator. He sees her but ignores her calls, heading to Mayor Nam’s room to secretly record a sex tape.
The episode ends with Mayor Nam and Yun-seong panicking as they realize they’ve been filmed.
Episode 2 Recap: “The Video That Changes Everything”
Tae-seop now holds the most dangerous recording in Korean politics. He uses it to confront Yang-mi, waving the video as a shield to protect Sang-ah. This scene reveals his duality: he genuinely cares about his wife, but every act of “protection” is also a chess move for his own ambition.
Yang-mi doesn’t fold. She counters by bringing Park Jae-sang into play — a man about to be released from prison with a dangerous connection to Sang-ah’s past.
The marriage begins to crack. Sang-ah insists there’s no romance and throws away Tae-seop’s letters. But Tae-seop becomes obsessed, hiring someone to follow her to shooting locations.
Then the mayor’s sex tape leaks to the public, apparently by accident. Tae-seop becomes an overnight sensation — the prosecutor who brought down a corrupt mayor. But the attention threatens to expose the entire operation, and Sang-ah’s comeback collapses.
In a bold move, Sang-ah bypasses Yang-mi and goes directly to the WR Group chairman — Yang-mi’s husband. Tae-seop realizes what his wife has done and is stunned.
The episode ends on this cliffhanger: what did Sang-ah offer the chairman? And what does she know that Tae-seop doesn’t?
Episode 3 Recap: “The Murder”
This is the episode that transformed Climax from a good political thriller into a great one.
Tae-seop overhears Sang-ah speaking with the Chairman about a shared past involving Jae-sang. The Chairman tells Sang-ah he no longer cares about Jae-sang — but warns that she has much more to lose.
Yang-mi confronts Tae-seop after learning he plans to run for political office. She delivers a chilling warning: “You don’t even know your own wife.” She reminds him that reputation is the only currency in politics — and once destroyed, there’s no recovery.
Then the flashbacks begin, and they change everything.
Sang-ah had a secret lover: Ji-soo, a fellow actress who despised doing intimate scenes. One night, the agency CEO forced Ji-soo to “entertain” powerful men. Ji-soo tried to escape but was captured and dragged back.
That same night, Sang-ah walked into the CEO’s office holding a knife — and stabbed him to death.
In the present, a YouTuber working for Yang-mi teams up with Jae-sang (Sang-ah’s former bodyguard) to expose Sang-ah. Jae-sang claims he was always in love with her and that she only manipulated him. Tae-seop discovers the plan and physically beats them both.
The episode ends with the murder flashback frozen on screen: Sang-ah standing over the CEO’s body, knife in hand.
Episode 4 Recap: “The Truth Behind the Truth”
Just when you think you understand what happened, Episode 4 dismantles your assumptions.
First revelation: Tae-seop was present the night Ji-soo was abused. He drove a chief prosecutor to the location and witnessed Ji-soo being manhandled but did nothing. Ji-soo looked at him with pleading eyes. He walked away. She died shortly after.
Second revelation: Jae-sang tells the YouTuber this story, claiming it was the night that entangled everyone’s fates forever.
Sang-ah, upon learning Tae-seop was there that night, collapses emotionally in front of the media. At Ji-soo’s funeral, she publicly confronts the CEO. The CEO then installs surveillance cameras in Sang-ah’s apartment and holds evidence against her.
Third revelation — the biggest twist: the murder from Episode 3 was misleading. It was actually Jae-sang, not Sang-ah, who stabbed the CEO. And the person who ordered the killing was the Chairman himself.
Fourth revelation: Tae-seop knew all of this. He buried every piece of evidence and used Sang-ah’s guilt to propose marriage, promising to protect her secret. Their entire marriage was built on his deliberate manipulation of her trauma.
When Sang-ah discovers the full truth, she is devastated. Tae-seop calls her a murderer. She stumbles out in her bathrobe, drives blindly through the night, nearly hits a pedestrian, stops the car, and gets out — only to find a mysterious figure standing before her.
Episode 4 ends on this cliffhanger.
5 Burning Questions Before Episode 5
1. Who is the mysterious figure?
The person who appears before Sang-ah is the drama’s biggest cliffhanger. The most likely candidate is Jae-sang — just released from prison and still claiming to love Sang-ah. If Yang-mi sent him, it means she’s making her most dangerous move yet.
2. Will Sang-ah turn against Tae-seop?
Sang-ah now knows her marriage was built on manipulation. Korean news previews show “a tense face-off marked by cold, calculating gazes.” She may shift from victim to player — making her the most dangerous person in this story.
3. What is Jeong-won’s real agenda?
Nana’s character has been growing more independent — pulling off solo missions and physical confrontations. Is she truly loyal to Tae-seop, or building her own leverage? A Jeong-won betrayal would be devastating.
4. Will Yang-mi and Jong-uk’s alliance fracture?
Previews show Jong-uk and Yang-mi in the same room with tension between them. Are they negotiating behind Tae-seop’s back? The person who funds the operation often becomes the final boss.
5. The Chairman — puppet master or next target?
He ordered the CEO’s murder. He knows everyone’s secrets. In K-drama power struggles, the person who appears untouchable usually falls hardest.
Where to Watch Climax by Country
South Korea: ENA (Mon/Tue 10 PM KST), Genie TV
Korea and Asia: Disney+
United States and worldwide: Viki
Japan: Disney+
Full Episode Schedule
Episode 1 — March 16, 2026 (Mon) — Aired
Episode 2 — March 17, 2026 (Tue) — Aired
Episode 3 — March 23, 2026 (Mon) — Aired
Episode 4 — March 24, 2026 (Tue) — Aired
Episode 5 — March 31, 2026 (Mon) — Upcoming
Episode 6 — April 1, 2026 (Tue)
Episode 7 — April 7, 2026 (Mon)
Episode 8 — April 8, 2026 (Tue)
Episode 9 — April 14, 2026 (Mon)
Episode 10 (Finale) — April 15, 2026 (Tue)
All episodes stream on Disney+ and Viki on the same day.
Why You Should Watch Climax
Director Lee Ji-won doesn’t waste a single frame. The noir cinematography — cold blues, tight close-ups, dim lighting — turns every conversation into a threat. The non-linear storytelling keeps you guessing: flashbacks reveal new information that recontextualizes everything you thought you knew.
Ju Ji-hoon delivers controlled intensity as a man who believes he can manipulate everyone but is slowly losing grip. Ha Ji-won brings raw vulnerability to a woman used by every man in her life. And Cha Joo-young as Yang-mi steals every scene — calm, vicious, and always three moves ahead.
If you enjoyed Kingdom, The Glory, or The Penthouse, Climax is your next obsession.
Episode 5 airs Monday, March 31 at 10 PM KST on ENA and Disney+.
Coming next on KDrama Recap Hub: Climax Episode 5 Recap and Review — published within 24 hours of airing. Bookmark this page!