Knock
“Someone knocks on her door every midnight!”
Art student Jeong-hwa (Seo Woo) is moving to a smaller apartment by her school when she trips and falls, breaking a small statue on a box. She bends over to pick up the pieces and notices an amulet the shape of a queer mask and decides to use it for her exhibit assignment. After she moves she hears a weird knocking sound next door. She can’t sleep because of the knocking sound every midnight and starts sketching the amulet. One night, Jeong-hwa comes home late and runs into a strange woman with long tangly hair and barefoot in front of the elevator. She gets off without a word and starts knocking next door. Jeong-hwa is terrified, what is going to happen to her?
Where to watch Knock in United States
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Click a service to open Knock there. Availability last verified on June 20, 2026.
About Knock
Knock is a 2012 Korean-language horror, tv movie and romance film directed by Lee Joo-heon. The cast is led by Seo Woo, Hyun Sung, Baek Seo-bin. It has a runtime of 1h 40m.
Knock was produced by Nomad Films and made in South Korea. It was released on November 29, 2012.
- Director
- Lee Joo-heon
- Writers
- Lee Joo-heon
- Release date
- November 29, 2012
- Original language
- Korean
- Status
- Released
- Country
- South Korea
- Production
- Nomad Films
Knock cast & crew
Knock was directed by Lee Joo-heon and written by Lee Joo-heon.
Behind the camera, cinematography is by Jin Young-Hwan.
Is Knock worth watching?
At 1h 40m, it's an easy, time-light watch.
If you enjoy horror, tv movie, and romance, Knock is worth a place on your watchlist.
How and where to watch Knock
Knock isn't currently available on major streaming services in United States. We track availability continuously — add it to your watchlist and we'll keep an eye out.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
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Cast of Knock
Seo Woo
Hyun Sung
Baek Seo-bin
Ju Min-ha
Eun Woo
Knock — FAQs
▸Where can I watch Knock in United States?
Knock is not currently available on major streaming services in United States. Availability changes often — check back soon.
▸What language is Knock in?
Knock is originally in Korean. Subtitle and dub options vary by streaming service.
▸How long is Knock?
Knock runs 1 hours 40 minutes (100 minutes).
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