2330hrs: ABACUS, 24 CORNHILL
This is more like it. The place is swarming with sexy young suits. At the bar, a handsome 26-year-old is in mid-argument with a waitress. She's telling him he's just missed last orders at 11.30pm. He's insisting the bar's open until 1am.
The man is Frederico Bustos, a hedge fund analyst from Clapham. He introduces workmates James Regan and pal Lee Ashman, a trader. They're typical of the rest of the punters - young, fun, and more than a little drunk.