'Our neighbours divide into the haves ... and the have yachts.' Meet Mimi and Clare, two married women making the most of their Notting Hill postcode. New best friends, and close neighbours, that doesn't stop them being rivals, in fact it compels it. Both are aspiring Notting Hill Mummies (Clare needs the baby, Mimi needs the six figure income) and, keeping up with all the area's fads, fashions and fabulousness is a full-time job. But the arrival of sexy billionaire Si in their exclusive communal garden strains loyalty to friends, family, spouse and feng-shui guru alike ... and only one of them can win. But who will that be? Clare or Mimi? Are they friends, or just...neighbours?