London: A group of thirty-somethings meet to celebrate a birthday. All seems normal. But, after two years of trying, Claire and Anthony have still not conceived a child, and pulsing with the fear of terrorist attacks, the city is crackling with tension. Befriending a young girl, Nora, Claire finds herself drawn as her maternal instincts begin to blur.

Meanwhile, Anthony is forced to question his job as a City Analyst as their safe and secure existence begins to fracture. As Claire retraces the journey she has made since an accident ended her promising career as a ballet dancer in Berlin, she realises her life has moved beyond her control.