Just when you were about to pour your partying days down the drain like a half-empty can of warm beer, Sonar emerges like the black-leather-clad temptress from your dreams and hands you a glass of dark red wine. You have been initiated into the next level of partying. The 5-month-old club is owned and operated by Inbal Lankry and her siblings, who moved down from New York City this year and transported a pocket of urban sophistication to South Florida. The white walls of the minimal, vault-like space stretch up toward a red ceiling, and the darkly dressed cognoscenti meander through a club they can finally call home. At Friday night's Vamp Party, DJs spin industrial, gothic, and new wave, including Pet Shop Boys, NIN, New Order, and the like. A recent visit by DJ Monk exemplifies the underground tone of a club that leaves the pack far behind.