A will-they-won't-they love story spanning decades, exploring messy coming-of-age and found family, set against the backdrop of a wedding weekend in Ireland.

Frances is back in Ireland for yet another friend’s wedding—only this time, it’s different. She has imagined this particular wedding a million times, but in no version was she alone in her hotel room, trying not to cry. In every version, she was the one marrying Callum Sutton. She was the one he was promising to love forever.

Instead, she’s single, and staring down the most difficult weekend of her life. Four days of putting on her bravest face, ignoring sympathetic smiles (her friends) and suspicious stares (the bride’s friends). Four days to get over Callum, for good.

How did they end up here? As the wedding weekend unfolds, we go way back, into a friendship forever on the brink of being something more. From their early days of homemade mixtapes and drunken almost-kisses, we journey through birthdays, weddings, life-upending bereavements, and the final heartbreak that pulled them apart—and led to Callum proposing to Someone Else.

But as Frances unpacks her suitcase, there’s a knock at her hotel room door. It’s Callum, in the flesh. And suddenly, the answer to what this weekend will hold becomes a lot less certain...

We Go Way Back hits all the beats of a classic will-they-won't-they story, but it’s also a novel about friendship, forgiveness, and figuring out who you want to be when you grow up. Sexy and tender, funny and moving, this is an epic love story for the millennial age.