Performances of the comedic, murder mystery Shear Madness ended not too long ago, but yet it's back. If you goofed around and didn't make it to see a performance at Stage Door Theater the last round, you'll have to during this one. Having seen the show twice with different cast members, I've been throughly impressed. The play, which features ditsy, dull and plain-out goofy characters, revolves around the murder of an old lady who lives about the Shear Madness Salon. And best of all, it's an interactive show -- so you and the rest of the audience decide who-dun-it. Continues through Sept. 6. $29.50 and up. 7:30 p.m. Stage Door Theater, North College Street at 5th Street. 704-372-1000. www.blumenthalcenter.org.