So, if you like bloody, psycho, revenge movies, you will like this. One thing I will say, is Lee Min Ki is OUTSTANDING in this. He is so believable with his actions and facial expressions. It is about a woman, Park Go Eun, wanting revenge for the murder of her sister. She is a little off mentally, which helps her, because it makes her fearless. Again, I can’t say enough about the male lead. He made this movie. At times, it was hard to watch because I had to turn away a few times due to the violence, gore and blood. It is definitely a movie that kind of stays with you, if you know what I mean. Just don’t watch it before you go to sleep.