This drama starts as a whodunit. Unreliable narrator and many sides of a story told through the view of different people is something I like very much, but the second half we see the drama is less a mystery and more a sad story with a strong social commentary. By ep 10 it was already obvious the suicide and that everybody was working together trying to taking down that scum. The pedophilia, domestic violence, rape are very strong themes but somehow I felt it could had been better worked.
Differently from many I think the drama could have less episodes. They spent too much time showing too meticulously the characters background stories that in the end were almost all lies and felt like fillers because they showed things to us that were not said by the characters and even these were lies just to mislead us what I don't think makes sense, it seemed a lazy write device.
Many things doesn't make sense, like the the blackmailing using photos of abused children as if its disclosure would be worst for the victims than the criminal. For god's sake if you possess photos of abused children you are automatically incriminating yourself, even if they couldn't proof he was the culprit he was the adult responsible for them! They would never be the wrong ones in this situation.
Many things in this drama are too frustrating, like, why they never recorded that man's threats? They never tried to get proofs?
I think the more frustrating of all is that int the end the abuser won. It's showed almost as a happy ending but he had it all. He destroyed the lives of the mother and the children and ultimately the victim that was abused her entire life had to die to him finally go to jail! The doctor's carreer was destroyed, the brother lost his memtal health
and his sister that was the most important person in his life, all the neighbors gone to jail even if for a short period.
As a cdrama, it's only approved by the censorate if in the end the law is served and no culprit of any crime goes unpunished, this spoils any chance of a good story of revenge or scheming for justice, because this drama would be much better if they had united with a good plan and sent that scum to hell and managed to keep the truth hidden.

As a good thing I can say I liked the women protecting and helping each other. I liked the feminist points even though the discourse was clichè. I don't know how to explain but I felt that many serious themes in this drama were showed in a way just... shallow. The two detectives seem a caricature most of the time. I really think the writing was lacking in some aspects.

This is a drama worth to watch but is far from a masterpiece, in my opinion. Has a lot of flaws but also some very powerful moments.