The Devil's Plan is a reality game show featuring highly intelligent individuals and advanced level games.
It's normal in Asia to have famous people (actors, YouTubers, etc) participating in game shows rather than the average Joe.
First off, the games are no joke. They are complex, designed to challenge high IQ individuals. You might need to rewatch the game explanations several times to understand the strategies employed by the participants, tho you will probably catch on naturally by watching the games unfold.
There are some high level elements that's just a touch of genius that I can't get into without spoiling it. The level of detail in the hints, and the fact that some of the participants catch on, is amazing. I'll just leave it at: The Safe. You'll know what I mean when you get to it.
Finally, the twists, lies and betrayals are fun to watch.
Very good show. Not just a reality show based on personality clashes, but one of smart people trying to outsmart each other while seeming amicable and polite, very East Asian! I truly enjoyed this show.