THEATER: It's the opening weekend of Catchy Name Theatre Company's Corned Beef, "a post-modern comedy of art with mistaken identity, triangular love and much popping in and out of doors."

8 p.m. // Boxcar Theatre Studio (125A Hyde Street) // $16

ART: Go back into the womb (you know you want to) at Womb Nostalgia, a group exhibition exploring our inherent desire to return to the womb, a place of healing, safety and connection to another body. Featuring painting, photography, drawing, video, sculpture and installation art, along with music, performance, and poetry at tonight's opening.

7 to 10 p.m. // Market Street Gallery (1554 Market Street) // free

PARTY: Burning Man Enthusiasts -- Celebrate Burnal Equinox and create your own "rite of passage," such as "remembering a previous year’s burn, dressing for your prom, creating a sacred procession of unicorns and golden earmuffs, or you skip all the fuss and come as you are."

8 p.m. to 3 a.m. // Kelly's Mission Rock (817 Terry Francois Boulevard) // $15-20