As I remember, Korean actor Son Hyun Joo starred in this movie. Even though I seeked by his name, I didn’t find it among movies that he played.

Movie plot:

His wife is a teacher of a school. But she took up with her partner teacher and started to cheat his husband. Her husband (Son Hyun Joo)  faced it then he visited to her school. Afterthat he found and visited their apartment where they meet. Then he found somethings that their pictures and her toothbrush from there.  He got mad. Eventually, when her wife entered into home, he killed her.

Do you this movie?