Generate a question that has the following answer: Cello for the following movie plot: A young woman playing the Ave Maria on a cello; the scene switches to another woman bleeding on an operating table. Hong Mi-ju (Sung Hyun-ah) is watching students play their cellos while their professor grades them. The professor tries to coax her into going to a concert for the little sister of Kim Tae-yeon. Mi-ju declines both the concert and a job offer to become more than just an associate teacher. Mi-ju is confronted by a student who says that because of Mi-ju, her music is for nothing. The student promises revenge. Shaken, Mi-ju drives home and nearly avoids getting into an accident with a truck. At home, she receives a message on her cell phone: "Are you happy? ...You should be." In her attic, Mi-ju sees her elder, autistic daughter, Yoon-jin. Her husband Jun-ki, her sister-in-law Kyeong-ran, and her younger daughter Yoon-hye are also present; everyone but Yoon-jin appears mute and emotionless. Yoon-jin sings "Happy Birthday" to Mi-ju. Mi-ju seems to share a special affection for Yoon-jin. The next day, Yoon-jin stops to stare at a cello in a music store, and Mi-ju buys it for her. Mi-ju meets the new, silent housekeeper, Ji-sook, and begins to teach Yoon-jin how to play the cello. Yoon-hye plays in Kyeong-ran's room until the latter's fiance, Hyeon-woo, shoos her out. Yoon-hye asks Yoon-jin to try the cello, but the normally calm and emotionless Yoon-jin bites her little sister. The same night, Kyeong-ran has a breakdown, as her fiance has seemingly broken up with her. Mi-ju watches the sleeping Yoon-jin, but her daughter's sleeping face suddenly becomes ghastly. In Kyeon-ran's room, a ghost emerges and throws her through the glass balcony door. The rest of the family does not seem to hear a thing. However, Yoon-jin gets out of bed and sees Kyeong-ran strangled and dangling at her window. Jun-ki presents Mi-ju with her old college yearbook, asking why Kim Tae-yeon's pictures are cut out. Mi-ju tells her husband the reason why she quit playing the cello is because of her former friend, Kim Tae-yeon....
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Answer: What does Yoon-jin stare at in the music store?

Q: Generate a question that has the following answer: Company insurance fraud for the following movie plot: In Sydney in 1952 and returning from a month away, the private investigator Reilly finds his office has been taken over by the building's janitor, Jerry Vane, who has been impersonating him in his absence. Roughing Vane over, Reilly discovers he has taken a missing person's case in which an insurance company is trying to locate someone named Alex Pleshette. However, when Reilly presents himself to the insurance office to drop the case, the owner Max Arnett claims he never hired his agency to begin with. On the way out however, Arnett's receptionist inadvertently gives away the truth that Reilly was in fact hired. Heading back to his office, Reilly is confronted by two thugs in an alley who beat him and tell him to lay off the Pleshette case. In his office a short time later, a beautiful young woman in black arrives. Presenting herself as Mrs. Pleshette, Reilly assumes she is Alex Pleshette's wife, however she curtly informs him that her husband is dead, and that she is actually Alexandra, better known as Alex Pleshette. She tells him to stop interfering as she is now no longer missing, and departs leaving him even more confused. Next day, Reilly finds out from his police detective friend Jack Bosley that Alex Pleshette witnessed the murder of her husband, a wealthy tycoon named Donald Pleshette who was at the time being investigated for company insurance fraud. However, she was knocked unconscious by the killer and as a result is unable to remember the event. Not long after this, she went missing and no one knew where she was, not even her lover Gabe Preston, her husband's disgruntled business partner. Reilly recognizes that Preston would thus have a motive for murder, but Bosley explains that he has a strong alibi. Later, Reilly gives Vane a camera and instructs him to follow Arnett and take photos of anything that appears interesting. Meanwhile, he drives to the Pleshette mansion on Noir Drive to confront Alex. She concedes that although she was bitter towards her husband as a result of the fraud...
A: Why was Donald Pleshette being investigated?

Generate a question that has the following answer: Mark for the following movie plot: The Mangler, in Gartley's Blue Ribbon Laundry service, is a laundry press owned by Bill Gartley (Englund). The trouble starts when Gartley's niece, Sherry, cuts herself on a lever connected to the machine and splashes blood on the Mangler's tread while trying to avoid being crushed by an old ice box some movers are clumsily carrying past. Sparks and light streams occur when both the blood and the ice box come into close contact with the Mangler. Later, an elderly worker, struggling to open a bottle of antacids, spills them on the moving tread of the Mangler. When she attempts to collect them, the safety shield inexplicably lifts up and traps her hand inside, followed by her entire body getting pulled into the machine. Police officer John Hunton (Levine), with the help of his brother-in-law Mark (Daniel Matmor), investigates the incident and the ones that soon follow. As the plot progresses, Mark tries to convince Hunton that the machine may be possessed, and the only way to stop the deaths is to exorcise the machine to dispel whatever demon is inhabiting it. With the help of Sherry, the two men attempt to exorcise the demon before it strikes again by reciting a prayer and administering holy water. The machine gives one last groan and shuts down. As the three sigh with relief, Hunton takes some antacids, admitting to Mark that they belonged to Frawley. Mark suddenly realizes that the key ingredient in the antacids is deadly nightshade, also called "the Hand of Glory" as outlined in his occult book. Since the machine was accidentally fed the same antacids, Mark realizes that not only was the exorcism rendered useless, as the demon is still alive, it is now stronger than ever. The machine bursts to life and now appears to have a mind of its own, shedding off pieces of metal and rising up in the manner of a wild beast. The three run through the warehouse as they are chased by the now-mobile Mangler. The Mangler kills Mark while John and Sherry descend a flight of stairs. In their hurry to escape, they fall...
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Answer:
Who does the mangler kill?