Luis Bunuel created a masterpiece in The Exterminating Angel, a savagely funny satire of bourgeois manners and the latent brutality they barely manage to conceal. Alternately, it might be a shameless rip-off of the 6th Season Buffy episode Older and Far Away which, presumably through some magic portal or Faustian bargain, Bunuel was able to view 40 years in advance.
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