One week in London; two men, two women, a lost Egyptian purse, several seagulls and a mystery man dressed as Peter Pan... Each spin of Maria Cormack's Circle line roulette wheel is designed to single out a fellow passenger for special treatment, but two Tube journeys in autumn 2010 fatefully weave together the lives of four apparent strangers. In a city still emerging from the shadow of terrorist attacks and gearing up for the carnival of the 2012 Olympics, this unusual, rich, and often funny, story of love, loss, loneliness and the role of luck offers insights into the common strangeness of our inner worlds, showing how obsession and a desire for a sense of identity can lead us in very different directions.