✔ 最佳答案
I do believe in ghosts, and even I can explain this.
The Amityville Horror is not apparently real. It's been busted many times over as complete fiction. The whole thing was exposed as a hoax before you were probably even born.
The murders were very real, and the house is still very real. Only the exterior of the house was used in the movie, and the house doesn't look like that anymore. All the interior scenes were filmed in a studio, no scenes were shot inside the building. The Lutz family and the author they hired first claimed their story was entirely true, but they couldn't keep their details straight about what happened and how it happened. After a series of particularly nasty lawsuits (including a divorce), too many people admitted that the whole thing was just made up. It was presented as a true story because that's how to make it really sell.
And that's the explanation coming from someone who does believe in ghosts. Because I also believe in living people.