Audium 9: Spatial electronic orchestrations and sound sculptures. Early arrival is advised. Fridays, Saturdays, 8:30 p.m. $20. Audium-Theatre of Sound-Sculptured Space, 1616 Bush (at Franklin), 771-1616.
Beach Blanket Babylon: Steve Silver's musical revue spoofs pop culture with extravagant costumes. Wednesdays-Sundays. $25-$130. Club Fugazi, 678 Green (at Powell), 421-4222.
Big City Improv: Actors take audience suggestions and create comedy from nothing. Fridays, 10 p.m. $15-$20. www.bigcityimprov.com. Shelton Theater, 533 Sutter (at Powell), 433-3040.
The Business: A Comedy Show: Sketch and stand-up comedy. Wednesdays, 8 p.m. $5. Dark Room Theater, 2263 Mission (at 18th St.), 401-7987.
Cut the Crap: A solo performance. Fridays, 10:30 p.m. Through Jan. 13. $12-$15. 401-7987. Dark Room Theater, 2263 Mission (at 18th St.), 401-7987.
Future Motive Power: A theatrical performance in the Old Mint. Fridays-Sundays, 8 p.m. Through Jan. 29. $15-$30. 967-1574. www.mugwumpin.org. Old Mint, 88 Fifth St. (at Mission), 967-1574.
Monday Night Marsh: Musicians, actors, performance artists, and others stage works in progress. Mondays. $7. The Marsh Theater, 1062 Valencia (at 22nd St.), 826-5750.
Not Getting Any Younger: Solo performance by Marga Gomez. Fridays, Saturdays. Through Feb. 25. $15-$35. The Marsh Theater, 1062 Valencia (at 22nd St.), 826-5750.
Period of Adjustment: Play written by Tennessee Williams set on Christmas Eve about marriage, friendship, and large-scale disillusionment. Tuesdays-Saturdays. Through Jan. 14. $20-$50. SF Playhouse Stage 2, 533 Sutter (at Powell), 677-9596.
Secret Improv Society: Underground improvisational theater. Saturdays, 10 p.m. $15. Shelton Theater, 533 Sutter (at Powell), 433-3040.
Shopping! The Musical: Songs and sketches about shopping. Fridays, Saturdays, 8 p.m. $23-$29. www.shoppingthemusical.com. Shelton Theater, 533 Sutter (at Powell), 433-3040.
Some Thing: Art drag night with craft table. Fridays. $5. The Stud, 399 Ninth St. (at Harrison), 863-6623.
Tony 'n' Tina's Wedding: Fridays, Saturdays, 7 p.m. $88.50-$115.50. www.tonyandtinasanfrancisco.com. Imperial Palace, 818 Washington (at Grant), 956-9888.
The Two-Character Play: Tennessee Williams story of a brother and sister and their collective family demons. Tuesdays-Sundays. Through Jan. 15. $10-$25. www.therhino.org. Eureka Theatre Company, 215 Jackson (at Front), 788-7469.
Wild Bride: Kneehigh Theater's grown-up fairy tale of a girl's journey in which her father accidentally sells her to the devil and her prince goes off to war. Includes live and found music. Tuesdays-Sundays. Through Jan. 22. $17-$83. Berkeley Repertory's Roda Stage, 2025 Addison (at Shattuck), Berkeley, (510) 647-2949.
Xanadu: A Greek muse visits Venice Beach to help a young man build the first roller disco. Wednesdays-Sundays. Through Jan. 15. $26-$45. New Conservatory Theatre Center, 25 Van Ness (at Market), 861-8972.