The hottest club scene in San Francisco was The Batman Nightclub "Wayne Manor" in Sunnyvale.
A rock and soul nightclub modeled on the very popular Batman TV show starring Adam West. Inside Wayne Manor, apparently, it was got up like the Bat Cave, and the staff was dressed in various costumes. For a long time, the house band was a Fremont band called The Gotham City Crimefighters, and they wore capes and tights.(source)