When Sam falls in love with Deptford thug Derek, and Anne's best friend Kathleen takes her own life, they discover they are linked not just by a world of drugs and revenge - they also share the friendship of the uncanny and enigmatic Deborah. Seamstress, sailor, story-teller and self-proclaimed centenarian immortal, Deborah slowly reveals to Anne and Sam her improbable, fantastical life, a history of hidden Deptford and ultimately the solution to their crises.