One milestone birthday. One secret to uncover. A friendship that never was.

For thirty years, Ella and Tucker have shared a birthday and a best friend. When he jokingly teased, “I love you, Ella,” she not-so-jokingly declared, “I hate you, Tucker.” For a lifetime, they were never friends, a fact made obvious after Ella suffers an accident and Tucker doesn't seem to care.

After seven years of silence between them, Ella is furious when her friends set them up on a joint New Year's birthday vacation. In his absence, Ella has realized her true feelings for Tucker. While he spent their childhood just pretending to be in love with her, she spent her adulthood realizing why she could never truly be his friend.

Ella's in love with the boy who always showed up for her. But, she's angry at the man who stayed away. With one week to see each other anew, Ella disects her past with Tucker　the secrets they kept, the moments they shared. A first kiss. A first touch. A firsteverything.

She thinks they don't know each other anymore, but maybe they never really knew each other at all.