Widowed father Nathan buys antique doll Matilda for his daughter Ava, unaware it harbors a sixty-year-old spirit that steals Ava’s memories to replace her. With a detective and folklore expert, he uncovers the truth: Matilda vanished as a child, trapped by loneliness. Confronting his grief, Nathan names her remains; Ava holds onto herself and chooses home. Matilda finds peace, yet a new cursed music box hints at endless cycles of sorrow.
