One mistake can change a life forever. Zo is living a conventional suburban life in Fremantle. She works, she gardens and she loves her supportive husband Archie and their three children. But the arrival of a new woman into her son Daniel's life unsettles Zo. Suddenly she is feeling angry and hurt, and is lashing out at those closest to her. In Sussex, England, Julia is feeling nostalgic as she nurses her best friend through the last painful stages of cancer. Her enthusiastic but dithering husband Tom is trying to convince Julia to slow down. Although she knows Tom means well, Julia cannot help but feel frustrated that he is pushing her into old age before she is ready. But she knows she is lucky to have him. She so nearly didn't ... These two women's lives have been shaped by the decisions they made back in 1968 - when they were young, idealistic and nave. In a world that was a whirl of politics and protest, consciousness raising and sexual liberation, Zo and Julia were looking for love, truth and their own happy endings. They soon discover that life is rarely that simple, as their bad behaviour leads them down paths that they can never turn back from.