What are some good Korean horror movies?

Good Korean horror movies: "Anatomy Classroom", "The Red Shoes", and "The Fourth Floor". I personally think these three movies are very good and particularly scary. For example, anatomy classroom.

"Anatomy Classroom" is a horror movie directed by Son Tae-woong and starring Han Ji-min, On Joo-wan, and Oh Tae-kyung. It was released in South Korea in 2007. The film tells the bizarre story of several young men who dream of becoming the best surgeons while practicing dissecting cadavers.

Starring Han Ji-min became a rising star on the screen after successfully starring in the movie "Green Swallow" last year. Han Ji-min, who looks pure and feminine, will play the role of a female medical student with a tragic background, who grew up in adversity but has a very resolute personality. During the filming process, Han Zhimin had to overcome the fear from herself and the surrounding environment. When the director said "OK" to indicate that the film was finished, she burst into tears involuntarily.

"Anatomy Classroom" combines medical themes and horror very well, giving the audience a fresh experience. The film combines the Western material element "corpse" with the Eastern spiritual element "soul" to make the audience feel the atmosphere of terror.