So, as it was one of those nights (tang of exhaust, pong of hopeful aftershave, wafts of cigar smoke mingling in the heavy air), we left the pub and went along a few yards to Draycott Avenue, and stopped at the corner by a welcoming white awning and French windows opened wide to the street. 'Do you know Le Suquet?' my companion asked. No I didn't, I answered, but I could see that if you wanted to pretend you weren't in Chelsea at all but in a hilltop village outside Cannes, or eating bouillabaisse in a little dive off the harbour in Marseilles, you might come here.