Actually, there are two different dramas in one here. And they do no mix well! I wanted so much to drop this but I kept watching since it had turned into a hate watch after 3 episode only to become more interesting in last two episodes.

The first story is a usual student/teacher forbidden romance. It was bad! Don't get me wrong, I have nothing against this theme in a drama if it is done correctly. Unfortunately everything was wrong about it here starting with the cast of the main roles: both actors are too old and it is very much obvious so the story is not convincing. They are supposed to be 17 & 27 but the actors are both 10 years older and it is jarring. The only credible moment these two had were the very last couple of minutes of the drama! Another jarring point in this love story was the teacher's behaviour. Why is it that when women fall in love in dramas they completely lose every brain function and become lovelorn idiots making one wrong decision after another until the hell breaks loose? The student was behaving his age; a hormones raging teen who first jumps and then looks! I was really annoyed with the love story more so since the couple had no chemistry to speak of! For a long time I was convinced that the teacher was fooling with the kid to take revenge on his mother who ruined the teacher's family long ago! No such luck! I kept wishing they would not end up together. No such luck!

I almost dropped it but the second story was much more compelling...

The second story is a crime story. The couple is being talked and bullied on the internet with growing violence. One of the suspects is the student's mother. Her character is very interesting. As the story progresses and we find out more about her life, she becomes more and more human and likable. At the start of the show she's just that tiger mom, controlling and fierce. We find out the reasons for her behaviour and suddenly our appreciation of her changes completely. Really, she is the best character in this drama and actually makes it worth the watch.

The rest of the characters are not worth the mention. They are there just to be a soundboard for the three main ones.

This drama does nor know if it wants to ba a romance or a crime drama and that is bad. The romance part is extremely badly written: the kid is a brat playing cruel pranks on the teacher who falls in love with him instead of punishing him? What?!?!? The stalking crime part was much better structured and the final search was suspenseful as they managed to keep the mystery until the very end!