SF Sketchfest welcomes the return of the ever-popular Gravid Water, which has sold out every one of its appearances at the fest thus far!Gravid Water has been playing at the Upright Citizens Brigade Theatre in New York and LA since 2004. In those cities, top improvisers and actors, from Broadway, "30 Rock," "Conan," "Saturday Night Live," and beyond, perform in scenes from Stoppard to Sophocles, and everything in between. The actors know their lines, and the improvisers improvise, with no prior knowledge of the scenes. The show is created and directed by Stephen Ruddy.