Shin HyeSun is an amazing actor, and she truly was perfect in this role, with the back-and-forth between the meek teacher and the Catman.

There is always an inner debate about whether one should keep quiet so as not to cause issues or raise hell to allow justice. The bullying scenes depicted were cruel and honestly scary. The brazen harassment of a teacher and other students was allowed via power through parents and the school administration.

Though perhaps unrealistic, I did enjoy the notion that the school and even the bully's gang had good in them at the end and were coerced into the sadistic bullying they did since they eventually turned at the end.

The action scenes though were truly the star of this film from the hallway confrontation to the sequence at the end. I love the realistic overpowering of the female lead at times and the way she is able to fight back through technique and will.