This is the type of fare that South Korea is famous for. It's a psychological carnival ride that leaves you wondering what the next twirl will bring. By the end, you're not even mad that it turns out, it's all about life and human failings, after all.
Yes, people exist who are just as dastardly as the dastardly father. Indeed, some people get hung up on terrible things in their past and do everything to make their chosen scapegoat pay - with their blood, if needed. And, for a fact, you'll find people whose past trauma convinces them they are unlovable and should not ever be loved. Outsiders, those who've never endured that kind of life, would never understand these things. They're nice and helpful, but they can never enter that circle.
You'll find all this and more in Perfect Family, and it's brilliantly done.
Kim Byung-chul and Yoon Se-ah resume their roles as a married couple, a partnership they played in Sky Castle (in a very different dynamic!), Park Ju-hyun continues to excel; she gives off serious Park Hyung-sik vibes. The rest of the cast complements them well.
Minus one star for draggy scenes, and for that weird burnt-house-dinner scene that hardly made sense. Otherwise, well worth the watch.