It's Christmastime in Paris and everyone in the city has someone special to spend it with, except Adrien, who's used to spending the school holiday alone with his father's secretary and his bodyguard. He expects that this year will be more of the same, but when his classmate Marinette invites him to come ice skating with her and her friend on the last day of school, it begins to seem like Christmas this year won't be so lonely after all.