The Southeastern Summer Theatre Institute presents the comedy “Shear Madness,” America’s longest running play, at the Main Street Theatre. Shows are Tues.-Sat. at 8 p.m.; Sat. and Sun. matinees at 2 p.m. The madness erupts at your not-so-typical New York hair salon, when suddenly the old lady upstairs gets mysteriously murdered and everyone’s dying to know who did it. The audience combs through the clues, questioning the suspects like a bona fide Sherlock Holmes and the best part—it’s different every time you see it! For tickets, visit brownpapertickets.com.