Few and far in between are hotspots where lawyers, scribes and local TV personalities can cohabitate with such ease. Even rarer are the ones where mere mortals can be part of the fray and not feel self-conscious. The music isn’t anything to write home about, nor is the decor. The tiny terrace? It’s OK. What really keeps ‘em coming back to Plan B – and staying until all hours – is its implacable charm. Plan A, you just met your match.