im sure everyone was super hyped for this drama and i definetly see why! yeobeen and nana delivered a lot of good moments and their duo was the best part. the pacing was..alright? though it didn't bother me that much honestly it was just slow for the first couple eps and took too many turns and side plots and kind of just felt unnecessary in a way? (i.e jihyo's co worker working with the police guy) and some side characters felt kind of just there if that makes sense. i would not go headfirst watching this drama with high expectations of crazy alien stuff because many of the plotlines tie into this cult which i found interesting honestly i think some may not have liked that though. i think the best scene(s) of this drama would have to be the last ep where the big ufo and alien reveal happened (reminded me of the movie 'arrival') and when the cult members find out everything they have been told was a lie and so on. with all of the stuff aside, the cinematography was amazing down to the last second and the thriller elements are just as good imo. yeobeen and nana make it worth the ending and i hope they ended up happy and are living together because they deserve that!