@ButterMus
@Brightamethyst
If you're confused, the 'diver' was narrating to the camera person (supposedly also a diver).
The 'diver' is actually an octopus mimicking a human, so when he saw '
another one mimicking a human' he got excited at finding a kindred spirit.
After his excitement, he became hungry and ate the camera person.
This doesn't explain how the 'diver' was able to speak like a human underwater, so it's not very immersive/horrific.