A romantic holiday in sunny Rome. A happy marriage strong enough to last forty years. Three children, now adults, who've grown up secure in the knowledge that they know everything about their mum and dad, and each other. But they don't. On the day of the surprise anniversary party Steffie and her brother and sister have arranged for their parents, there's a shock in store, for all of them. Especially for Steffie. It's definitely going to be a day to remember ...