Inside glitterati and grifters search for drinks. Caterers weave through the crowds but seem to only be carrying empty champagne flutes. It’s disorienting being at these parties, especially straight off an 11-hour flight from LA and worse, stone-cold sober. I keep looking for a bar and as if to sharpen the evening’s uncanny atmosphere, Chloë Sevigny steps out from the shadow of the building’s central hemicycle staircase.