In the charming community of Silver Hollow, Halloween is the most enchanting night of the year. This year, little Ava finds an ancient, intriguing mirror hidden in her grandmother's attic. The mirror, dubbed the "Moonlit Mirror," only displays its secrets at midnight on Halloween. As Ava looks into the mirror, she is taken to a gloomy, magical realm where an ancient evil threatens to invade her reality. To preserve her community, Ava must answer the mirror's mysteries and battle the dark powers inside.