On a radiant day in Sydney, four adults converge on Circular Quay, site of the iconic Opera House. Each one is haunted by past intimacies, secrets and guilt: Ellie is preoccupied by her sexual experiences as a girl, James by a tragedy for which he feels responsible, Catherine by the loss of her beloved brother in Dublin and Pei Xing by her imprisonment during China's Cultural Revolution. Told over a single Saturday, their stories chime and resonate. A fifth - the figure of a child - is ever present. By night-time, when Sydney is drenched in a rainstorm, each life has been transformed.