After Allison receives a letter from her Doctor about her tumor, she dreams of what would happen to her family if she were to die. As a spirit she meets a recently deceased woman, Mary-Louise Graff, who points her in the direction of her killer. Graff isn't being entirely honest. Ariel can see her and she gets her to continue her work with DA Devalos. It all takes a toll however. Ariel has to give up her plans to go to Dartmouth College and grows weary of her mom's constant presence. When Allison wakes up, she takes steps to deal with Graff and ensure Ariel gets her wish.
—garykmcd