This show deserves much more than a 7.7 lol. The people that has rated this drama poorly is because they cannot stand violence and sadism, which is, if course, valid, but it is not an objective criteria for rating it so low. I hate musicals with my whole soul but I wouldn't say that all musicals are terrible because I simply do not like them and I cannot stand people singing instead of talking.

Of course the drama has its plotholes, and it does not explain who or how they did what they did to them, but that is not the point of the drama. The drama through the game/show portrays society, human behavior and how privileged people oppress middle and lower classes.

The people that says that human would not behave like that in such small scale needs a reality slap. Search the Jail Stanford experiment for example.

Overall, very good drama with on point actors and satisfying ending in my opinion.