In this task, you will be shown an extract from a movie plot and a question. You need to provide the correct answer for it. Short answers containing words that are present in the passage are preferred.

[Q]: Dr. Carter Nix (John Lithgow) is a respected child psychologist. His wife, Jenny (Lolita Davidovich), becomes concerned that Carter is obsessively studying their daughter, Amy; he regards her like a scientist tracking the development of his creation. But Carter himself suffers from multiple personality disorder consisting of Cain, a street hustler, Josh, a shy 10-year-old boy, and Margo, a middle-aged nanny. Carter and Cain are killing young mothers to procure their children for his experiments.Jenny is having an affair with Jack Dante (Steven Bauer), the widower of a former patient. She had a relationship with him years ago, but he left her. Now she plans to leave Carter and elope with him. When Carter accidentally discovers their tryst, he descends completely into his madness and begins leaving subtle clues for the police that Jack is the real killer. Next, he attempts to kill Jenny by submerging her car in a lake. She escapes and confronts Carter at home. Unable to find Amy, Jenny demands Carter tell her where she is. Carter replies that she is with his father, whom Jenny knows has been dead for years.Carter is apprehended for attempted murder. The police bring Dr. Lynn Waldheim (Frances Sternhagen) to interrogate him. Waldheim interviews Carter and informs the police that she co-wrote a book with Nix Sr. called Raising Cain, about a boy with multiple personality disorder. Nix Sr. had extensive detailed knowledge of Cain's tortured childhood, including taped recordings of their sessions. However, Waldheim was never allowed to meet Cain. She pieced the situation together: Nix Sr. dispassionately put his own son through years of severe child abuse to gain firsthand accounts of his traumatic psychological development and study the emerging personalities. Horrified, Waldheim quit the project.During interrogation, Margo and Josh act and speak for Carter. Josh recites a rhyme and vanishes, and Margo assumes control. She stonewalls Waldheim from any further questioning. Eventually, Carter and Cain break from their confines. They pounce upon Dr. Waldheim, knocking her unconscious and leaving the building disguised as her. The police soon find Waldheim begging them to arrest Carter before any children are harmed.Nix Sr. (Lithgow) is in fact alive, having faked his own death to elude prosecution for attempting to buy babies. He has established a new identity and a clandestine research facility in Norway. He has been using Carter and his multiples to procure the children so he will have an adequate control group to study the development of MPD. Jenny follows who she thinks is Waldheim to a motel, but it is actually Carter/Cain. She follows Carter/Cain, who is now Margo, into an elevator. When it opens, she sees Nix Sr. with her daughter Amy. While Jenny begs for Nix Sr. to give back her daughter, Carter, Cain and Margo stabs "their" father from behind. Jack arrives with the police, and Carter and his personalities disappear.The movie ends with Jenny and Amy in a park. Amy runs off into the woods calling "Daddy, Daddy". Jenny follows her and finds Amy, who says her father has gone away. When Jenny bends down to pick Amy up, Carter appears behind her in a wig and a dress; Margo is now in control. Jenny holds Amy in her arms, oblivious to who is behind her., Question: What does he need the children for?
[A]: Answer: Study the development of MPD.


[Q]: Hallam Foe lives in in the Scottish countryside in a house with his father and his new stepmother, Verity. Hallam's mother died some time ago, and Hallam hasn't recovered. He spends his days mostly secluded in a tree house and spying on his surroundings. When Hallam's sister leaves home, their father suggests Hallam should find work and start a life on his own. Hallam refuses, and when he discovers a boat on the bottom of the lake he instead becomes obsessed with the details of his mother's death. His father reveals that she took her own life, but Hallam becomes convinced that Verity had something to do with it. In a pivotal scene, Verity discovers Hallam's diaries and uses them to pressure him into leaving, but only after she has sex with him in the tree house.Hallam leaves for Edinburgh without leaving word. He has no money and nowhere to stay, but on his second day he sees a woman in the street, Kate, whose resemblance to his mother makes him follow her to her work in the office of a large hotel. He persuades her to give him a job as a kitchen porter, and so he has a start. He also keeps following Kate, and echoing his experiences from the woods at home, starts to spy on her through her windows from the roof, or with binoculars from the clock tower of the hotel, and even breaks into her flat. He witnesses her sexual relationship with Alasdair, a senior employee at the hotel. By coincidence, Alasdair also discovers Hallam's spying activities and tries to fire him, but Hallam threatens to expose Alasdair's affair; he is, after all, a married man.Instead, Kate helps Hallam win the position of front-of-house porter, and after drinks on his birthday she even asks him home with her, and they seem to be starting a romantic relationship. However, the next day, when he sees Alasdair harassing Kate on her way into her flat, Hallam comes in through the window to fight him off, thereby revealing his habit of spying on her. She throws him out, of course, but she eventually lets him explain his whole situation, and they find common sympathy.Hallam's father and his wife have tracked Hallam down and come to the hotel to meet him. They want to sell off land and need Hallam's approval. He still insists Verity is responsible for his mother's death, and has even reported her to the police to no avail. Soon after, strongly affected by grief and pain, he goes back to his childhood home to seek out Verity, gags and ties her, carries her to the lake and throws her in the water. At the last minute he regrets his action and pulls her back out. Hallam's father, sickly and unable to defend his wife, finally tells Hallam the truth and asks him to blame him rather than Verity: Hallam's mother had been suicidal for a long time and on the day she died, it was because he had simply given up trying to stop her.Knowing the truth, Hallam can finally hope to find peace. Back in Edinburgh, he goes to see Kate. They talk, but she turns him away, saying she hopes to meet him again later in life. Hallam walks away, smiling., Question: How did Hallam's mother die?
[A]: Answer: suicide


[Q]: London bank clerk William Marble (Charles Laughton) is deeply in debt. When his boss learns of a lawsuit for an overdue bill, he warns Marble that he will be dismissed if he cannot settle the matter quickly. Then, Marble is visited by a rich nephew whom he has not seen in many years, James Medland (Ray Milland). All night, Marble tries to borrow money from him, having received a financial tip that could solve all his financial troubles. However, Medland is not interested. Driven to desperation, Marble poisons his nephew and buries the body in the back yard.With the dead man's money, Marble speculates on margin and makes Â£30,000, a large sum that enables him to retire. However, fear of his crime being discovered makes him consistently nervous and irritable. His wife Annie (Dorothy Peterson) knows something is wrong, but wrongly guesses he has embezzled from the bank. To relieve his nervous tension, he sends Annie and their daughter Winnie (Maureen O'Sullivan) away on a three-week vacation. While they are gone, he has an affair with Madame Collins (Verree Teasdale), a local shopowner. Winnie finds out when she returns a day early and discovers Collins in the house, but keeps quiet about it.Despite their new financial wealth, troubles continue to grow for the Marble family. Annie finally figures out what her husband has done, but stands by him. Winnie becomes a bit of a snob, consorting with a higher social class of people and sneering at her parents. When she runs away one night, Annie chases after her in the rain and becomes very ill. However, under Marble's loving care, she begins to recover. Then Madame Collins shows up and blackmails Marble into giving her some money. Annie overhears and commits suicide with some of the same cyanide used to kill Medland. Marble is convicted for her murder. When Winnie visits on the day of his execution, Marble reassures her that he did not kill Annie, but says that he is nonetheless at peace with his fate. He is convinced he is paying a bill that was only deferred., Question: Who is convicted of Annie's murder?
[A]:
Answer: Marble