This can be watched with English subs. This is a noir with a bloody last act. Be warned. Korean movies favor sharp weapons over guns. This movie combines drama, suspense, and personal/social justice themes. It's almost Shakespearean. It has clear noir themes, and the screenplay doesn't shrink from building some highly imperfect human beings and putting them and Korean customs and ways under a microscope.
"A woman subject to mental, physical, and sexual abuse on a remote island seeks a way out."
She's visited by her childhood girl friend from Seoul, who is alienated, selfish, rather cold, cowardly and unkind.
The intensity and realism seem far above typical American levels in movies. The acting is top notch; the Korean school of acting is special, like Italian neo-realism. They're always right in character.