The story of Odysseus's homecoming, told alternatively from Odysseus's and Penelope's point of view.
For much of this book I felt it was just a re-telling of the second half of the Odyssey which stuck too close to the original. It was only after Odysseus (disguised as the beggar) and Penelope met and the two tricksters start manoeuvring round each other that I really thought we were getting anything new.