It’s been quite a while since Charles Busch, the playwright and performer who specializes in sending up old movie tropes in works like The Divine Sister and Red Scare on Sunset, has had a show that he deemed ready for review, so The Confession of Lily Dare counts as a successful return to form. It’s a loopy satire of film melodramas about fallen women, although its most prominent forbear is Shaw’s Mrs. Warren’s Profession (first performed in 1902). Few performers can discern Hollywood camp as well as Busch: he has even provided commentary on DVD releases of The Bad Seed and Dead Ringer.