<P> They arrive and Elise stays at Ted's house . He says many paranormal incidents have happened, mostly in her old bedroom, which he has blocked off and won't enter . Elise walks through the house with a night vision camera . In her old room, she finds the lost whistle . She also finds keys attached to her father's uniform . Hearing mysterious sounds in the basement, Elise goes to investigate . A female ghost appears and attacks Elise, shouting "help her", before vanishing with the whistle . Elise tells them that she seen her before, as a teenager . Elise saw the ghost in their laundry room; Gerald investigated, he said he saw nothing . Fearing another beating, Elise fled the house and abandoned Christian . </P> <P> The next morning, Elise, Tucker, and Specs visit a diner, meeting sisters, Melissa and Imogen . Christian joins them, and they learn that the girls are Christian's daughters and Elise's nieces . Christian is still furious at Elise for abandoning him, and storms out . Hoping to repair their relationship, Elise hands Melissa a photo of the whistle, telling her to show it to Christian . </P> <P> That night, Elise and Tucker hear the whistle being blown downstairs . Elise follows the sound into the basement, where she realizes it is coming from behind a wall . Elise asks a series of questions, and learns that what she is looking for is behind the wall . Elise sees that the wall is a door, and rushes to her bedroom to get the keys . Behind the door, she finds a bloodied girl with a chain around her neck . Ted storms into the room and it's shown that he was keeping the girl against her will . He locks the group in the room and tries to kill Specs, but he tricks Ted, and kills him with a bookcase . The police rescue the group and Elise is taken in for questioning . </P> <P> During the questioning, Elise is startled by a vision of Melissa, realizing she is in danger . Christian and his girls go to find the whistle . Melissa is lured into the basement and is attacked by Key Face . The entity sticks two keys in Melissa, one steals her voice, and, the other, takes her soul and sends her into a coma . Elise, Tucker, and Specs, find Melissa in the basement . Christian demands that Elise stay away and Melissa is taken to the hospital . Imogen shows Elise that she can also astral project into The Further . Elise tells Imogen she intends to save Melissa by defeating Key Face once and for all, thereby ridding the house of the evil entities . </P>

Who plays the demon in insidious the last key