In general, this drama was pretty solid. The acting was relatively good and there was a good character development throughout the drama. I really enjoyed the unravelling of the secrets of each of the characters and the dark side of the seemingly perfect Yoo Beom Jin.
The drama is quite slow paced and I personally don't mind that HOWEVER the ending I found extremely confusing and lacking. There is no explanation in regards to Yoo Beom Jin's death(?) and the explanation for the actual crime considering it was so complicated was just not enough.
The court scenes also seemed a bit strange to me and obviously I don't know how the justice system works in Korea but I was surprised when Yoo Beom Jin started yelling and ranting when he was on the witness stand (I thought they are only required to speak if they are asked a question).
I wouldn't recommend this drama for people who really value the endings because the last episode of this drama was quite inadequate in my opinion. However, saying that it was a pretty enjoyable drama overall with an interesting storyline.