Martha Marcy May Marlene

An escaped cult member experiences paranoia and isolation while attempting to start a new life with her sister's family. Try as Martha might to blend into her new upper-middle-class surroundings, she can't help but be haunted by nightmares of the time she spent under the control of a malevolent cult leader, or the fear that the group is watching her every move and awaiting the perfect moment to take their revenge.