It starts not with a bang, but a Bacchanalia that would make Caligula blush. People dressed to the nines are gyrating and grinding away to La Bouche’s “Be My Lover,” including several uniformed soldiers and a rabbi. A woman in a shiny, skimpy dress kisses random partygoers before dancing on a table. A man fellates a baguette. Soon, people are dunking his head into a series of punch bowls. Drunk, he stumbles backwards into a pool. A crowd gathers. The woman strips and jumps in, pulling him out;