Intruder was a somewhat solid film that had some interesting idea and premise but it was also a film that used its potential to a full way like it had potential for it.Characters are fine but i lacked emotional impact to connect with them and that was a sort of a problem for me.Story also if it was cool and interesting ,it still lacked a far bigger impact that would effect me in a great sort of ways.Story and script were done in a good way,expecly script and acting made that thing just a lot better.Intruder is a proof that not every Korean film is masterpiece but it had some fine moments