It leads to the boutiques, galleries, and antique shops of the equally fashionable Via Mazzini.
Boutiques up-to-date with recent trends can be found in Via Mazzini.
I think that what she has unearthed in grisly detail is the uniquely shallow, instrumental, and crass culture of Los Angeles (which I once heard described as high school with money), where looks, fame, and income compose the ranking rules for a truly wacky hierarchy.