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.
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?
Question: Two questions. 1. Since Frederick knew that Annabelle was cheating on him with David, why didn't Frederick just file for a divorce? 2. Since Frederick's plan was to murder Annabelle and David, then why invite the others? Why not just take Annabelle to the house, kill her and then invite David and do the same thing? If nobody else had been at the house, he could have got away with it especially since the acid would have left no trace of Annabelle or David.
Answer: Because then there wouldn't be a movie. It's called "suspension of disbelief", where we accept that movie characters often make decisions that, in real life, they would not. This only becomes a problem if it negatively affects the believability of the story within the universe of the film. If the entire plot depends on a questionable/unrealistic choice, then the filmmakers really have no choice but to lean into it and hope the audience goes along for the ride.
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?
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: Adding to similar questions, how is it that neither Annabelle or Dr. Trent are not surprised Trent was invited by Frederick? They would have to know Frederick is aware of their plan to kill him. Why do they go through the whole movie as if this isn't a problem? (01:11:40)
Answer: They didn't know for sure he knew, if he did know, Annabelle thought she knew all of Vincent's tricks to out smart 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