6 August 1920. It's Nancy Gulliver 's eighteenth birthday. She lives a sheltered life with her Aunt Mary in a sleepy seaside village. In nearby Dublin, fighting continues between Irish rebels and the British army. Nancy is hopelessly in love with an older man and spends most of her time in a remote beach hut she has recently discovered. Now she discovers that a mysterious stranger is also using 'her'' secret hideaway...