Two teen witches who were separated at birth and were adopted by two different families meet on their 21st birthday and must use their powers to save the world in which they were born, where their birth mother still lives.

Based on the classic novel by William Faulkner, first published in 1930, "As I Lay Dying" is the story of the death of Addie Bundren and her family's quest to honor her last wish to be buried in the nearby town of Jefferson.