Sarah, the morose harpist of the Jerusalem Philharmonic Orchestra, is married to Abraham, the almighty conductor. They have no children. When Hagar, a young horn player from East Jerusalem joins the Western Side Orchestra, Sarah's world erupts. The unique friendship evolves when Hagar offers Sarah to have a baby for her from Abraham. The well-known biblical story of the 2 sons, that metaphorically represents the roots of the conflict between the 2 peoples, receives a new and emotional perspective.