Comtra Theatre, Route 19, Cranberry Township, opens "Wait Until Dark" on Friday at the theater on Route 19. The mystery-drama will run through Aug. 16. Curtain is at 7:30 p.m. Fridays and Saturdays. Admission is $12 for plays and $15 for musicals. Box office opens at 6:45 p.m. the day of the show. Call 724-773-9896.

<B>Quantum Theatre</B> will present "Cymbeline" by Shakespeare opening today and continuing through Aug. 24 outdoors in the Rose Garden at Mellon Park, at the corner of Fifth and Shady Avenues in Shadyside. Tickets range from $25 to $35. Call 412-394-3353.<B>Pittsburgh CLO</B> presents "Annie Get Your Gun" through Sunday at the Benedum Center, 719 Liberty Ave. The next and final show of the summer season will be "West Side Story" running from Tuesday through Aug. 17. Tickets start at $18.50 and are available by calling 412-456-6666 or by visiting the Web site, www.pittsburghCLO.org.<B>The Backstage Bar and Cabaret at Theater Square</B>, a project of The Pittsburgh Cultural Trust, in Theater Square at 655 Penn Ave., is showing "Shear Madness" through Sept. 28. Performances start at 7:30 p.m. Wednesdays through Saturdays, at 2 p.m. Saturdays and Sundays and at 1 p.m. select Thursdays. Tickets are $39.50 for evenings or $34.50 for matinees.Call 412-456-6666 or visit the Web site, CLOcabaret.com