The rollicking rock concert becomes an increasingly naked soliloquy.

Chris French as Hedwig. Photo by Will Abner. Many people I know have been urged to see Hedwig and the Angry Inch at one point or another with this endorsement: “You’ll like it, it’s like Rocky Horror!” With all respect to the cult classic, it’s just not a fair comparison. Sure you’ve got the rock opera score, some sexually-explicit lyrics, gender-bending themes and glam costumes. But to label Hedwig a campfest is to sell…