Let me start with a compliment: Time by Kim Ki-Duk is not mediocre, and I appreciate that in a movie. That being said, the plot is ridiculous and the characters despicable. It's over the top in a bad way.

Seh-hee/See-hee is so afraid of losing her boyfriend, Ji-woo, to another woman that she abandons him and completely transforms her face through plastic surgery. Six months later, she re-emerges to seduce Ji-woo as a different woman. What follows is a mind game that becomes increasingly twisted, and Seh-hee/See-hee ultimately gets a taste of her own medicine, living in a hell of dramatic and irreversible plastic surgery. Ji-woo, helplessly in love, goes to desperate measures to save their relationship (though I don't know why he bothered as it's an absolute disaster) and the results are ugly.

The most off-putting element in Time is that the women are psycopathic freaks who are clearly an object of hate and mistrust. It comes off as very misogynistic. By the end of the film Seh-hee/See-hee eventually learns her lesson, but the subject is handled in such a degrading way that it's hard to care. There's a lot of wasted potential in the concept of using plastic surgery to erase one's identity.