A group of young upper-class Manhattanites are blithely passing through the gala debutante season, when an unusual outsider joins them and stirs them up.A group of young upper-class Manhattanites are blithely passing through the gala debutante season, when an unusual outsider joins them and stirs them up.A group of young upper-class Manhattanites are blithely passing through the gala debutante season, when an unusual outsider joins them and stirs them up.