This looks Very Much The Sort Of Thing We Like, a new Format Of Death K-Drama starting on Netflix 17th May, apparently based on the web series Money Game. What’s on Netflix, via AsianWiki, has the plot down thus:
“8 people in need of money are invited to appear on reality variety show Money Game. The 8 people are to stay at the studio that consists of nothing but concrete walls. If they are able to hang in there for 100 days, they can divide the winning prize of 44.8 billion won equally. But, everything they spend for, including necessities like food, water, electricity, costs 1,000 times more than normal prices and are deducted from the winning prize.”
Description made me think of Liar Game, trailer of something less related. It does look interesting at least to watch an episode or two.