Two and a half thousand years old, the tale first written by Aeschylus could hardly be more topical. Themes of democracy, citizenship, rights of women (and wrongs of men) weave through the rhythmic text, in words sung and spoken. As Britain teeters on the edge of a divisive Brexit, feeding fears of migrants and foreigners, Greig’s script evokes the human plight of refugees – and the dilemma of the host country.