为创作热门节日歌曲寻找灵感的流行歌星与一名年轻粉丝见面，以实现对方的圣诞愿望，结果却在这个过程中发现了获得真爱的机会。

Determined to study astrophysics at an Ivy League college, high-school senior Ruby faces her anxiety as it appears vividly in her dreams, prompted by a seemingly magical ugly Christmas sweater. Within this tumultuous year, Ruby experiences first love, nostalgia, the power of sisterhood, and a new path to find peace.