Dublin, Ireland 1915 Eighteen-year-old May Gallagher is beautiful but restless, and longs for the freedom to live her own life, to decide her own destiny. Mollycoddled as the only remaining child of middle-class parents in the suburbs, she sneaks out to the theatre when she can. She is mesmerised by the captivating actor Peter Cullen, and wishes she could enjoy a more bohemian life. The Great War is taking all the boys away, and the promise that it will all be over by Christmas is ringing more hollow with each passing month. Her parents would be appalled if they knew she'd befriended the enigmatic Peter, who was from the wrong side of the city, but there is something about him that intrigues May. When catastrophe strikes Peter, it's to May that he turns, and in that moment she knows her life will never be the same again.