South London, 2008. Two couples find themselves at a moment of reckoning, on the brink of acceptance or revolution. Melissa has a new baby and doesn't want to let it change her but, in the crooked walls of a narrow Victorian terrace, she begins to disappear. Michael, growing daily more accustomed to his commute, still loves Melissa but can't get close enough to her to stay faithful. Meanwhile out in the suburbs, Stephanie is happy with Damian and their three children, but the death of Damian's father has thrown him into crisis - or is it something or someone else? Are they all just in the wrong place? Are any of them prepared to take the leap?