Be Somebody(2021)

Overview:

During the Republican era, a group of frustrated people from the movie industry is invited in a luxurious mansion to make a movie out of a gruesome case that has recently rattled the city of Shanghai, in the hopes that it would turn into a huge sensation and make them famous. However, they never expected that the murderer would be in their midst and that the truth behind the case would be far more bizarre than their fictional movie plot.