Shay Witherspoon is tired of being the third wheel. For as long as she can remember, she's been on the outside looking in as her best friend, Cara Kinkaid, shares the perfect relationship with Shay's longtime crush, Benjy Baltimore. But, two years after graduation, Cara has finally headed off to college for the fall semester, leaving Shay and Benjy behind to toil in daily shifts together at Pig Out, the local BBQ chain. When Shay catches Cara in a compromising position during their weekly FaceTime call, she troubles over whether to tell Benjy or not. All the while, the two grow closer and closer until they inevitably succumb to temptation and share an incredible night of forbidden passion together.

Shay hopes that her entirely made up new holiday, Treesgiving – otherwise known as the day after Thanksgiving when she will put the tree up and eat only Christmas related treats – will take her mind off Cara's inevitable trip home for Thanksgiving, to say nothing about how her suddenly rocky relationship with Benjy will shake loose, or hold together, in the fray. But when the dust settles and she and Benjy's dirty little secret finally comes to light, Shay must deal with the fallout like a big girl... and just in time for Christmas!