For me it's was great !!! This show is not our regular thriller. Personally I never watched anything of this sort. I am a fan of thriller — psychological,crime, mystery. This is a crime thriller and it's flavour is new. Mostly while watching a thriller what happens is one can foresee or atleast guess how the story is unfolding like guessing the culprit in a crime thriller and so. But in this thriller its kind of hard to do so. Hence, this cannot be every thriller lover's go to option. But I would like to recommend this to you. Give it a watch without any expectations. The suspense element is captivating only when u allow it to captivate you. Characters are really good let alone the actors who played. Go Min-si she nailed it in everyway possible to play a psychologically disturbed woman so does Kim Yoon-seok, the victim of her character's tricks n games. The story has its own way to present itself. Yes, the pace is slow compared to other thrillers. Now the reason is because the events take place in a confusing way. So fast pace or normal pace would have been a bit exhaustive I believe it personally. So when u watch it just sit back n let the story unflod in its own way. Without engaging in any whodunnit guess game just soak up its essense and go by its flow. That is the ONLY way of enjoying or watching this without getting bored. N yes if possible try to watch it at one go. Don't skip or take long breaks. Happy watching. 🤎