The protagonist, Ellen Langford (Eliza Taylor), begins the film as a "party heiress" whose most notable achievement is a drunken cartwheel into a Christmas tree . To prove her worth as the future CEO of her father’s multi-million dollar gift company, she is sent to the idyllic town of Snow Falls. The task is seemingly simple—deliver a handwritten letter to her father’s former partner, Zeke—but it is designed as a test of character .
The film employs a sharp dichotomy between New York City and Snow Falls. The city is represented by Ellen's fiancé, Gray, a corporate "finace-bro" who views the small-town residents as "hicks" and dismisses tradition as a waste of time. In contrast, Snow Falls is depicted as a cozy, altruistic haven where every resident, from the inn manager Jake (Jake Lacy) to the diner owner Debbie (Andie MacDowell), values quiet kindness over material gain.
At its core, Christmas Inheritance is about the weight of legacy. The handwritten letters delivered annually between the business partners represent a "slow" form of communication that stands in opposition to the digital, instant-gratification world Ellen leaves behind. The film concludes that the true "inheritance" is not the company itself, but the traditional values of friendship and love that the company was originally built upon.