Rockville Musical Theatre presents "Ragtime." Based on an E.L. Doctorow book, the show focuses on three families who address the issues of wealth, poverty, freedom, prejudice, hope and despair with real historical figures such as Houdini, William Howard Taft, J.P. Morgan and Sigmund Freud. F. Scott Fitzgerald Theatre, 603 Edmonston Dr., Rockville. $15; $8, ages 18 and older. 240-314-8690.
In Conor McPherson's play "The Weir," two men at an Irish pub try to impress a woman with scary stories, but she tells one of her own. 8 p.m. Friday and Saturday, 2 p.m. Sunday, through Nov. 28. The Writer's Center, 4508 Walsh St., Bethesda. Call for prices. 301-816-1023 or www.quotidiantheatre.org.
Gaithersburg Arts Barn
Kay Sandler's exhibition "Dual Nature: Felines and Flowers" features watercolors and pastels. 10-5 p.m. Wednesday-Friday, 10 a.m.-2 p.m. Saturday and Sunday, through Nov. 14. Gaithersburg Arts Barn, 311 Kent Square Rd., Gaithersburg. Free. 301-258-6394 or www.gaithersburgmd.gov.