1-The drama is mind blowing, very well written. The way all the dots connected to the Wonseok murder side by side all the other incidents happening and the insane amount of intense and suspense in every episode.
2-Never ruled out one suspect because each one carried his/her own secrets. Every actor nailed their character!! The cast was powerful. The way Jae Beom carried his character... he stole the show!
3-Can we talk about how wonderful, unspoken chemistry Ok Chanmi and Ji Sooheon had??? Only they could make each other smile at their lowest. Adding all of us are dead in my watch list because of one and only Park Solomon/Lomon.
4-Over all i am glad how it ended keeping in view all the other mystery thrill dramas i have seen. Not adding any spoilers since it was worth watching, highly recommended.