Lydia and Freddie. Freddie and Lydia. They've been together for almost a decade, and Lydia thinks their love is indestructible.

But she's wrong. Because on her twenty-seventh birthday, Freddie dies in a car accident.

So now it's just Lydia, and all she wants to do is hide indoors and sob 'til her eyes fall out. But Lydia knows that Freddie would want her to live her life well. So, enlisting the help of his best friend and her sister Elle, she takes her first tentative steps into the world and starts to live - perhaps even to love - again.

But then something unbelievable happens, and Lydia gets another chance at her old life with Freddie. But what if there's someone in her new life who wants her to stay?