Where to Watch Knock

Looking to watch 'Knock' on your TV or mobile device at home? Finding a streaming service to buy, rent, download, or view the Lee Joo-heon-directed movie via subscription can be tricky, so we here at Moviefone want to take the pressure off.

Read on for a listing of streaming and cable services - including rental, purchase, and subscription alternatives - along with the availability of 'Knock' on each platform when they are available. Now, before we get into the nitty-gritty of how you can watch 'Knock' right now, here are some specifics about the Nomad Films horror flick.

Released , 'Knock' stars Seo Woo, Hyun Sung, Baek Seo-bin, Ju Min-ha The movie has a runtime of about 1 hr 40 min, and received a user score of 37 (out of 100) on TMDb, which assembled reviews from 3 top users.

Want to know what the movie's about? Here's the plot: "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?" .