The Hunt (2020)

Following up after Ready or Not, we have another family of rich people who kidnap random regular folk and send them to a mansion to be hunted to death in a non-supernatural uniting of the-wealthy-sure-have-absurd-mannerisms with the-most-dangerous-game tropes.

The regular folk run around getting slaughtered and slowly realizing that they are in a well-known internet conspiracy theory, only believed by nutjobs, but apparently correct. One of them is a trained killer, and hunts back, and wins.