A young woman and her friends are threatened by an ancient witch's curse when they stop in the town of Amityville to check in on her sickly grandmother.
Not on screen. The dog runs off into the woods and you here it barking and whining, but none of it seems to be in pain. Maybe fear. The owner finds the leash stuck on a bush. I'm assuming that the implication is that the dog is dead.
You see some crows picking apart.... a vague bloody shape with fur. That's about all you can tell with it. Soon after you see a collection of cow skulls, and I think hooves, some which have some scraps of meat still hanging on them.
There is a fly POV shot with the accompanying buzzing noises the entire time. After there is a shot of what I think is a bee or a wasp? Or perhaps the fly that was the POV shot. I don't know, but he's a bug. There is also a later shot ~23:50 that has them opening a fridge with a loud buzzing noise and a bunch of black spots that I assume are meant to be flies flying around inside.