Call it planned obsolescence. When Palindrome theatre started three years ago, the small collective promised it would expire in December 2012. Seven productions later, it’s doing just that with the premiere of“The Attic Space” by company playwright Nigel O’Hearn. Starring Babs George and Ev Lunning Jr., the play considers the capriciousness of memory and the complexities of companionship. 8 p.m. Friday-Dec. 22 (6 p.m. on Sunday). Salvage Vanguard Theater, 2803 Manor Road. $10. www. palindrometheatre.com.