Actors Guild of Lexington this weekend opens a play by Sarah Ruhl called “The Clean House.” Ruhl’s a hot contemporary playwright who wrote “Dead Man’s Cell Phone,” which was staged last year by the Actors’ Guild. Also, Actors Theatre of Louisville has a production of her “In the Next Room or The Vibrator Play” on stage right now. “Here Come the Mummies,” who built a central Kentucky following during the World Equestrian Games, return Friday evening to Lexington. Plus, there’s a bunch of string music this weekend in Lexington, Clay City and elsewhere. With a preview is Rich Copley who’s an arts and culture reporter with the Lexington Herald Leader.