Twenty-nine, single, jobless and in a house share with her cousin who can barely look at her, things could be going better for Anya Mackie. When she stumbles across the pact she made with high school crush, Euan Carrick - to marry at thirty if they're still single - a silly teenage idea suddenly seems like a lifeline. However, Euan hasn't been seen for a decade. Reluctantly enlisting the help of Euan's emotionally unavailable best mate Jamie Kildare, who has his own mysterious reasons for tracking Euan down, Anya sets off across the country to find her Back Up Man. Will Euan even remember her, or their pact? And why is Anya betting her future on her past?