Even with a short runtime of 45min 12 episodes, a lot of it felt redundant. The mystery started to get really bland by episode 6, there was no rhyme or reason to it. The writer had a few ideas for the first 4 episodes but she was clearly lost with how to proceed with the rest. The side plots around the complex didn't blend well with the rest. Cutting them out wouldn't have made a difference. The plot holes were too obvious to ignore here, that's not good for any mystery plot. No good mystery is complete without an equally good reveal, which was really disappointing in this drama. The last 2 episodes were really bad. The drama ended with a teaser for an infinitely larger plot but I hope we don't get a sequel.