Mattie Cochran discovers an antique baby rattle in the attic of her grandparent's Texas farmhouse. A search for the rattle's original owner takes her to the overgrown family plot where she loses her way in an alter-dimension—or perhaps she's simply lost her mind. When Mattie stumbles upon her grandmother's diary, she begins to piece together the unsavory secret that's plagued the women in her family for generations.