Phoebe and Sam meet by chance at St Pancras station. Heading in opposite directions, both seeking their own adventures, meeting the love of their lives wasn't in the schedule. So they make a promise: to meet by the statue of Sir John Betjeman in twelve months' time if they still want to be together. But is life ever as simple as that? A story of what-ifs and maybes - and how one decision can change your life forever.