Anna Hollis believes she has a happy marriage. A schoolteacher in Sydney, Anna juggles her busy life with a daughter in the throes of first love and increasingly demanding aging parents. When Anna's husband of twenty-five years leaves her, on Christmas morning, without warning or explanation, her safe and secure world collapses. Marcus King returns to Australia from the USA, leaving behind a broken marriage and a young son. When he takes up the position of Headmaster at Anna's school, they form a fragile friendship through their mutual hurt and loneliness. Can Anna leave the past behind and make a new life for herself, and does Marcus have a part to play in her future?