House on Haunted Hill

Plot hole: Even if Dr. David Trent's and Annabelle Loren's elaborate plan had worked flawlessly (framing Nora Manning for Frederick Loren's death), the fact remains that they faked Annabelle's death for everyone to see, which would immediately arouse suspicions for investigators. Even if Annabelle and Dr. Trent somehow fled the scene before the police arrived the next morning, their actions would still raise many questions that implicated them; thus, their clumsy and convoluted scheme was far from being the "perfect crime" they imagined.

Charles Austin Miller

Other mistake: In the beginning the "host" tells the guests that if they don't survive the $10,000 due them for staying the night will be paid to their heirs. A short time later he says that the entire $50,000 pot will be split among the guests who are still alive at the end of the night.

Continuity mistake: When Annabelle gives Frederick her gun, he places it in the mini-coffin and closes the coffin. However, in one of the next shots, we see that all coffins are open.

More mistakes in House on Haunted Hill

Frederick Loren: The caretakers will leave at midnight, locking us in here until they come back in the morning. Once the door is locked, there's no way out. The windows have bars that a jail would be proud of, and the only door to the outside locks like vault. There's no electricity, no phone, no-one within miles, so no way to call for help.
Watson Pritchard: Like a coffin.

Frederick Loren: This is Lance Schroeder, a test pilot. He's no doubt a brave man, but don't you think you can be much braver if you're paid for it? And I happen to know that Lance needs the ten thousand I'm giving, if he's brave enough to stay all night.

More quotes from House on Haunted Hill

Question: In the scene where Mrs Loren appears at the window of Nora's room. Since Mrs Loren and the doctor are faking Mrs. Loren's death and apparition, how did they manage to make the rope go round her feet? Also how did Mrs Loren glide in and out?

Leprechaun

Chosen answer: As far as the "gliding in and out", Mrs Loren presumably uses the same body harness she used to fake her hanging. As to the rope... the film is deliberately ambiguous on whether or not the ghosts are real, as evinced by the drunk's last line in the movie; the rope trick is probably supposed to reflect this ambiguity despite being Mrs Loren's trickery.

Question: If Frederick picked the party members himself, without his wife's input, how did Dr. Trent (spoiler alert, his wife's lover) manage to get Frederick to pick him?

Chosen answer: Frederick knew that Trent was his wife's lover. That's why Trent was invited. The party was supposed to be an opportunity for Frederick to take revenge.

Charles Austin Miller

Question: (Spoiler alert) If Annabelle and Dr. Trent simply wanted to murder Frederick, what was the point of Dr. Trent attempting to dispose of Frederick's body in the acid? Why the elaborate scheme to have him accidentally killed by someone else if they were going to destroy his body in acid anyway? They could have simply hit him over the head and dumped him in the pit.

More questions & answers from House on Haunted Hill

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