Movie guide
On the Line (2021): movie guide
On the Line (2021) is a Action, Crime, Drama running about 109 minutes. It holds a TMDB score of 7.6/10 from 47 votes. Notable cast includes Byun Yo-han, Kim Moo-yul, Kim Hee-won, Park Myung-hoon. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 2021-09-15
- Runtime: 109 min
- TMDB: 7.6/10
- Genres: Action, Crime, Drama
Last updated: 2026-11-11 · First listed: 2021-09-15

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What is On the Line about?
Seo-joon, loses everything to voice phishing and infiltrates a organization in China to meet Kwak Pro, the designer behind this phishing system.
Cast highlights
On the Line features Byun Yo-han, Kim Moo-yul, Kim Hee-won, Park Myung-hoon, Lee Zoo-young, Jo Jae-yun. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 2021-09-15. Runtime: 109 minutes. TMDB score: 7.6/10 (47 votes). Genres: Action, Crime, Drama. Original language: ko. Status: Released.
Discover On the Line on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse On the Line, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is On the Line?
- On the Line is listed as Action, Crime, Drama on TMDB.
- How long is On the Line?
- On the Line runs about 109 minutes.
- Who stars in On the Line?
- Cast highlights include Byun Yo-han, Kim Moo-yul, Kim Hee-won, Park Myung-hoon, Lee Zoo-young, Jo Jae-yun.
- Does Cinema Box stream On the Line?
- No. Cinema Box is discovery-only — trailers, details, ratings, and watchlists. It does not host or stream full movies.
- Where can I track On the Line?
- Open the On the Line page on cinemabox.app or install the official Cinema Box Android app from Google Play for watchlists and discovery tools.








