Growing up in a small Irish seaside town in the 1950s, Clare O'Brien and David Power shout their hearts' desire into the echo cave, praying that their destiny will lead them far away from the town in which they live. Years later they meet again, in Dublin, where David is studying medicine and Clare has won a scholarship to University College. But eventually Castlebay will draw them back and it is against a backdrop of empty grey skies, sea-spray and wind that this drama of ambition, betrayal and love finally reaches its turbulent conclusion.