A man is determined to win the neighborhood's annual Christmas decorating contest. He makes a pact with an elf to help him win--and the elf casts a spell that brings the 12 days of Christmas to life, which brings unexpected chaos to town.

After Darby Harper suffered a near-death experience as a child, she gained the ability to see ghosts. To combat the existential boredom of high school, she runs a side business counseling local spirits in her spare time. When an unexpected occurrence happens between Darby and Capri, the most popular girl at her high school, Darby reluctantly agrees to help her and in the process learns how to fit in with the living world again.