Benson and Stabler interview a woman whose daughter was kidnapped from inside the house, and are shocked to hear the family's other daughter disappeared ten years earlier.
Cordelia's vision of a troubled child guides Angel and Wesley to a boy who is possessed by a 10,000-year-old demon.
A cheating wife is in the frame for poisoning her husband, a bestselling historian. However, Goren and Eames soon uncover a twisted web involving the victim's stern father, his crooked brother, and his manipulative sister-in-law.
Elizabeth defends two high-school students accused of soliciting murder, but one of the girls switches lawyers and cuts a deal, making it a case of "she said, she said."