Q:Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Who reveals to Caroline that the room belonged to two house servants? Title: The Skeleton Key Movie plot: Caroline Ellis (Kate Hudson) is a New Orleans Hospice Aide who takes the position as caregiver at an isolated plantation house in the bayous of southern Louisiana. The lady of the house, Violet Devereaux (Gena Rowlands), looks after her husband Benjamin Devereaux (John Hurt), who has had a stroke. With some prompting from the family's estate lawyer, Luke Marshall (Peter Sarsgaard), Caroline accepts the position. Caroline, using a skeleton key that Violet gave her, makes her way to the attic (where Ben had his stroke) and finds a secret room. She discovers dolls, a book of spells, potion jars, and various other magical paraphernalia. Violet reveals to Caroline that the room belonged to two house servants who were employed there 90 years prior. The couple, Mama Cecile (Jeryl Prescott) and Papa Justify (Ron McCall) were renowned practitioners of Hoodoo and were lynched for practicing spells with children. Violet also tells Caroline that they do not keep mirrors in the house because they see the reflection of the servants in them. Caroline then believes that since Ben believes Hoodoo caused his stroke, she can use Hoodoo, or more specifically Ben's belief in it to reverse the effects. Taking advice from her friend Jill (Joy Bryant), she goes to a local laundromat, known to have a hidden Hoodoo shop, to acquire a defense for Ben. A practitioner teaches her a ritual with items to use to cleanse Ben's illness; when Caroline practices the ritual, Ben regains some of his ability to speak, and begs Caroline to get him away from Violet. Caroline tells Luke about her suspicions towards Violet, but he rebuffs her idea. They travel to a gas station that Caroline previously noted was lined with brick dust, which she was told is a defense against Hoodoo. A blind woman tells her of the Conjure of Sacrifice, a spell of immortality, in which the caster sacrifices someone and gains the remaining years of their life. Caroline increasingly believes that Ben is in danger, but Luke belittles her fear. Caroline uses brick dust to...
A:
Violet