Oldboy Plot: What Is the Movie About?
Oh Dae-su is an ordinary man until the day he is locked away in a sealed room. Nobody tells him why. Nobody tells him who is responsible. Days turn into years, and his only companions are a television, his own anger and the slow passing of time. Then, after fifteen years, he is suddenly set free with no explanation.
The film’s tagline sums up the setup: “15 years of imprisonment, five days of vengeance.” Dae-su now has a short window to work out who stole more than a decade of his life, and why. He keeps track of everything in a notebook and pieces together clues from his past. Along the way he crosses paths with Mi-do, a young woman drawn into his search, and with Lee Woo-jin, a figure tied to the mystery.
What starts as a hunt for revenge becomes a tense, often unsettling investigation into memory, guilt and how far a person will go for answers. This page stays at the premise, so the story’s revelations are left for you to discover.

What Makes Oldboy Notable: Cast, Director and Context
Director: Oldboy is directed by Park Chan-wook, who co-wrote the screenplay with Hwang Jo-yoon and Im Joon-hyung. The story is based on a manga.
Main cast:
- Choi Min-sik as Oh Dae-su
- Yoo Ji-tae as Lee Woo-jin
- Kang Hye-jung as Mi-do
- Kim Byeong-ok as Mr. Han
- Ji Dae-han as No Joo-hwan
- Oh Dal-su as Park Cheol-woong
- Yoon Jin-seo as Lee Soo-ah
- Oh Tae-kyung as young Dae-su
- Yoo Yeon-seok as young Woo-jin
Genre and tone: Oldboy is a South Korean thriller and mystery made in Korean. It blends neo-noir atmosphere with flashes of dark comedy, raw martial-arts action and philosophical questions about sin, time and loneliness. The film runs 120 minutes.
Context: The film first premiered on November 21, 2003. Its production companies are Show East, Egg Film and Cineclick Asia. Oldboy has since been remade, and the original remains a key title for anyone exploring Korean cinema beyond K-dramas.
Looking for an Oldboy review? Drama4U shows its own Drama4U Score on this page. This guide focuses on what to expect: a dark, intense revenge story with mature content that is not for everyone.
Who Will Enjoy Oldboy?
- Fans of revenge thrillers and neo-noir mysteries with a slow-burning puzzle at their core
- Viewers curious about Park Chan-wook’s work or classic Korean cinema
- Adults comfortable with violence, torture and heavy psychological themes
- Audiences who like stylish action mixed with dark humor
- Movie lovers who enjoy stories that raise questions about guilt, memory and vengeance
Oldboy Release Date in the Philippines and Where to Watch
Philippine release: Oldboy has a listed theatrical release in the Philippines on September 23, 2009, with an R-18 classification. The film is for adult viewers only.
Where to watch in the Philippines: Streaming options for the Philippines are not yet listed in TMDB/JustWatch data as of October 24, 2026. Check local streaming and rental services for updates, as availability can change.
Trailer: A trailer for Oldboy is available. It is a good way to get a feel for the film’s tone before committing to the full 120 minutes.
Trailer
Cast
Choi Min-sikas Oh Dae-suSee credits →
Yoo Ji-taeas Lee Woo-jin
Kang Hye-jungas Mi-do
Kim Byeong-okas Mr. Han
Ji Dae-hanas No Joo-hwan
Oh Dal-suas Park Cheol-woong
Lee Seung-shinas Yoo Hyung-ja
Yoon Jin-seoas Lee Soo-ah
Photo: TMDB
FAQ
- When was Oldboy released in the Philippines?
- Oldboy has a listed theatrical release in the Philippines on September 23, 2009. The film first premiered on November 21, 2003.
- Where can I watch Oldboy in the Philippines?
- Streaming platforms for Oldboy in the Philippines are not yet listed in TMDB/JustWatch data as of October 24, 2026. Check local streaming and rental services for updates.
- Who stars in Oldboy (2003)?
- Choi Min-sik plays Oh Dae-su, Yoo Ji-tae plays Lee Woo-jin and Kang Hye-jung plays Mi-do. The supporting cast includes Kim Byeong-ok, Ji Dae-han, Oh Dal-su and Yoon Jin-seo. Park Chan-wook directs.
- What is Oldboy about?
- A man is imprisoned in a sealed room for 15 years without being told why. After his sudden release, he has five days to find out who locked him up and the reason behind it.
- How long is Oldboy and what is its rating in the Philippines?
- Oldboy runs 120 minutes. In the Philippines it carries an R-18 classification, so it is for adult viewers only.

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