Lanford Wilson's intimate examination of marriage in suburbia, 1970's Serenading Louie is building a reputation as a neglected masterpiece. Steven Scott Mazzola directs. To Aug. 21. American Century Theater's Gunston Theater II, 2700 S. Lang St. Arlington. Tickets are $26 to $32. Call 703-998-4555 or visit americancentury.org.