input: Please answer the following: Generate a question that has the following answer: Three for the following movie plot: The movie's structure is fragmented, as it alternates between three distinguishable plot threads. A man jogging through suburban London grabs his heart, and collapses. He wakes up in a hospital bed. The nurse tending him give him water. She leaves. He pulls down the bed covers to discover both his legs have been amputated. He screams. An official (Marshall Jones) from an unidentified Eastern European totalitarian state arrives back at his home country. Upon being debriefed by a superior officer, the man steps around the table, places a hand on the man's shoulder, paralyzes him, and kills him. A Metropolitan London detective (Alfred Marks) and his unit, investigate the deaths of several young women in the city. The women, picked up at nightclubs by Keith (Michael Gothard), have apparently been killed by the same individual, and some of the bodies have been drained of blood. The centerpiece of the movie is a near 15 min. long police car-chase/foot-chase sequence through suburban London. Vincent Price plays a doctor whose clinic specializes in limb and organ transplantation. Christopher Lee plays the head of Britain's -unnamed- intelligence services. Peter Cushing -third-billed- plays an unidentified official in the Eastern European country; a very brief cameo role. The three plot lines converge in a chilling - and unexpected - climax.
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output: How many plot threads are in the movie?

Please answer this: Generate a question that has the following answer: Paul for the following movie plot: In the distant future, the known universe is ruled by Padishah Emperor Shaddam IV. The most important substance in the empire is the drug known as melange or "the spice". It has many special properties, such as extending life and expanding consciousness. The most profitable and important of its properties is its ability to assist the Spacing Guild with folding space, which allows safe, instantaneous interstellar travel. Sensing a potential threat to spice production, the Spacing Guild sends an emissary to demand an explanation from the Emperor, who confidentially shares his plans to destroy House Atreides. The popularity of Duke Leto Atreides has grown though the empire, and he is suspected to be amassing a secret army equipped with sonic-based weapons, which Emperor Shaddam sees a potential threat to his rule. Shaddam's plan is to give House Atreides control of the planet Arrakis (also known as Dune), the only source of spice. Once installed on Arrakis, he intends to have them ambushed by their longtime archenemies, the Harkonnens, with assistance from the Emperor's elite troops, the Sardaukar. The Guild Navigator also commands the Emperor to kill Duke Leto's son, Paul Atreides, a young man who dreams prophetic visions of his purpose. The execution order draws the attention of the Bene Gesserit sisterhood, as Paul is tied its centuries-long Bene Gesserit breeding program which seeks to produce the universe's superbeing, the Kwisatz Haderach. Before he leaves for Arrakis, Paul is tested by the Bene Gesserit Reverend Mother Gaius Helen Mohiam by being forced to place his hand in a box which induces excruciating pain. To her suprise, he passes the test to Mohiam's satisfaction. Meanwhile, on the industrial world of Giedi Prime, the sadistic Baron Vladimir Harkonnen tells his nephews Glossu Rabban and Feyd-Rautha about his plan to eliminate the Atreides by manipulating someone in House Atreides into betraying the Duke. The Atreides leave their homeworld Caladan for Arrakis, a barren desert planet populated by...
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Answer: Who kills Feyd?

input question: Generate a question that has the following answer: The asylum director. for the following movie plot: As Francis (Friedrich Feher) sits on a bench with an older man who complains that spirits have driven him away from his family and home, a dazed woman named Jane (Lil Dagover) passes them. Francis explains she is his "fiancee" and that they have suffered a great ordeal. Most of the rest of the film is a flashback of Francis' story, which takes place in Holstenwall, a shadowy village of twisted buildings and spiraling streets. Francis and his friend Alan (Hans Heinrich von Twardowski), who are good-naturedly competing for Jane's affections, plan to visit the town fair. Meanwhile, a mysterious man named Dr. Caligari (Werner Krauss) seeks a permit from the rude town clerk to present a spectacle at the fair, which features a somnambulist named Cesare (Conrad Veidt). The clerk mocks and berates Dr. Caligari, but ultimately approves the permit. That night, the clerk is found stabbed to death in his bed. The next morning, Francis and Alan visit Dr. Caligari's spectacle, where he opens a coffin-like box to reveal the sleeping Cesare. Upon Dr. Caligari's orders, Cesare awakens and answers questions from the audience. Despite Francis' protests, Alan asks "How long will I live?". To Alan's horror, Cesare answers, "Until dawn." Later that night, a figure breaks into Alan's home and stabs him to death in his bed. A grief-stricken Francis investigates Alan's murder with help from Jane and her father, Dr. Olsen (Rudolf Lettinger), who obtains police authorization to investigate the somnambulist. That night, the police apprehend a criminal (Rudolf Klein-Rogge) with a knife who is caught attempting to murder an elderly woman. When questioned by Francis and Dr. Olson, the criminal confesses he tried to kill the elderly woman, but denies any part in the two previous deaths; he was merely taking advantage of the situation to divert blame onto the real murderer. At night, Francis spies on Dr. Caligari, and observes what appears to be Cesare sleeping in his box. However, the real Cesare sneaks into Jane's home as she sleeps. He...???
output answer:
Who actually is Dr. Caligari?