Not being Korean I found this series very interesting. I knew about the Korean war but never considered the possibility of North and South spy's working in 1987.
The thought that people where expendable at that time very cruel and heartless for us today every life is precious.
The fact that the 4 Northern spy's died was very heart wretching and wanting to know that their families would be spared by the communist regime when they died.
The acting by all of the cast was good.