What I find most problematic in this drama is its main premise -- that trauma could only be healed through revenge -- by inflicting the same of even greater pain to those who cause you pain. This shows how immature and misguided the writers of this show are. I am not in any way saying bullying or abuse should be tolerated. Not at all. But I was expecting some sort of breakthrough -- maybe an insight into the workings of the human ego and psychopathy, and realizing how carrying the burden of hate actually makes the initial suffering inflicted that much worse. I would have expected the main character to realize somewhere along the way that forgiveness and letting go -- through compassion and being the bigger, noble person -- is the true path to healing and being free from all the anger. Instead, revenge is offered, from start to finish, as the ultimate solution.

And it's not like that revenge is executed as brilliantly as I initially expected. The plot is messy, uninspired, and unfulfilling. There are so many loose threads half-baked explanations, and deus ex machina-type plot devices employed that the narrative is left confusing, unsatisfying, and full of holes. For instance, when Moon Dong-eun was about to jump off that rooftop in that abandoned building, Yeo-jeong's mother suddenly appears out of nowhere to appeal to her to keep on living in order to save her son (through helping him seek revenge, of course).

I also didn't like that they had to unnecessarily turn Do-Young into a murderer in the end. What was all that disgust for Yeon-jin, all that righteous indignation, if he was going to do something equally dastardly? And again, he happened to be right there, and Jae-joon happened to somehow wander up towards the top of a building/factory, when he couldn't see. If I couldn't see, I would not even risk climbing up a set of steps. And Do-Young had been a sort of pillar of morality throughout the drama, and they suddenly had to ruin his character by turning him into a murdered just like his wife.

I also felt bad for the ahjumma that helped the FL carry out her surveillance operations. We do not even see her get reunited or at least reestablish contact with her daughter, when her husband was dead and Yeon-jin was in jail. What was keeping her from following her daughter? Dong-eun wasn't even able to fulfill her part of the bargain of killing her husband. Could she not give the poor woman money to follow her daughter?

None of this makes for a brilliant plot or a truly layered story. I didn't feel that I learned anything useful or that this story enriched me in any way. And did I mention that the love story angle was so forced an unnatural? Zero chemistry between the leads. What an utter waste of time this was.