Aged thirteen, best friends Eleanor and Fin are inseparable and make a pact - to go to university together, always live near each other, and if they're both single at 35 they'll get married. In two decades, they're both far from where they'd dreamt of being all those years ago. It takes tragic circumstances for Fin to come back into Eleanor's life, but everything has changed since the last time they met. Is it too late to mend their friendship? Or can they keep some of the promises they made?