Yups. It"s really mentioned as melodrama than thriller or mysteri.
My prediction is CJW is the real main hero in this drama. How she could trust her hubby when she found out about the crimes who is accused to his husband meanwhile he isn't the real serial killer. In first episode, we could watch when she saved her hubby and said that she would love him more than before. It pointed that there is somethin miss in his case.
I thought the background why she had to get married with BHs because she was knocked up by BHS. In first episode, there was conversation between cjw and her fake MIL (Gong Mija/GMJ). Mj mocked cjw that cjw's fam is messed, her mom nagged her dad until him die, she got pregnant to catch her son, and than take benefit her son with the birth of their daughter, and accused cjw wants to take money from the rich in law, Mj asked for cjw to consider their relationship were over too, and then cjw always apologize and ask for mj not inform to BHS about their conversation.