Given the question: I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: House of 1000 Corpses Movie plot: On October 30, 1977, Jerry Goldsmith, Bill Hudley, Mary Knowles, and Denise Willis are on the road in hopes of writing a book on offbeat roadside attractions. When the four meet Captain Spaulding, the owner of a gas station and "The Museum of Monsters & Madmen", they learn the local legend of Dr. Satan. As they take off in search of the tree from which Dr. Satan was hanged, they pick up a young hitchhiker named Baby, who claims to live only a few miles away. Shortly after, the vehicle's tire bursts in what is later seen to be a trap and Baby takes Bill to her family's house. Moments later, Baby's half-brother, Rufus, picks up the stranded passengers and takes them to the family home. There they meet Baby's family: Mother Firefly, Otis Driftwood, her adopted brother, Grampa Hugo and Baby's deformed giant half-brother, Tiny. While being treated to dinner, Mother Firefly explains that her ex-husband, Earl, had previously tried to burn Tiny alive, along with the Firefly house. After dinner, the family puts on a Halloween show for their guests and Baby offends Mary by flirting with Bill. After Mary threatens Baby, Rufus tells them their car is repaired. As they leave, Otis and Tiny, disguised as scarecrows, attack the couples in the drive way and take them prisoner. The next day, Otis kills Bill and mutilates his body for art. Mary is tied up in a barn, Denise is tied to a bed while dressed up for Halloween, and Jerry is partially scalped for failing to guess Baby's favorite movie star. When Denise doesn't come home, her father Don calls the police to report her missing. Two deputies, George Wydell and Steve Naish, find the couples' abandoned car in a field with a tortured victim in the trunk. Don, who was once a cop, is called to the scene to help the deputies search. They arrive at the Firefly house and Wydell questions Mother Firefly about the missing teens. Mother Firefly shoots Wydell in the neck and kills him, and Don and Steve are then killed by Otis upon finding other bodies in the barn. Later that... My question: What is Denise tied to?
The answer is:
bed