To be honest I didn't expect that much from this drama after Netflix ruined "Extracurricular" but how wrong I was, this was superb from the very beggining! Still can't figure it out how Netflix managed to cast such great actors, favorite casting in a drama from this year? Absolutely! Lee Do Hyun and Park Gyu Young are killing it this year! ==**Can't wait for next season**==

Without a doubt the best show I’ve watched in a longtime. I really highly rate so many shows and film from Korea. Great actors, production, and such refreshing story lines and wow, what phenomenal imagination shining through.

Definitely one of my favorite dramas of 2020. I came for Lee Jin-wook and stayed for him + everything and everyone else because it was/they were all so brilliant.

The first season was amazing. Excellent monster design, lots of tension, just nearly perfect. Then season 2 and season 3 happened, and in my opinion, dragged the show down. I didn't understand half of what was going on in season 2 and in season 3, sure it pulled everything together (kind of), but it was just fine. Sure, there was an ending but it felt kind of like "and they all lived happily ever after" and I didn't care for it at all. This is one of those shows that should have just been 1 season and then done. It would have gotten a 9/10. As is, it gets a 7/10 but only because of the strength of season 1.

Not a good watch at all Imo.