Possessor

I can see this as the stepping stone to Infinity Pool that this would become.

Like Infinity Pool, this perfectly balances world-building reveals through character action and scene make-up. Also similarly, it brings an organic, gooey, gory interface to computers and digital technology. I love those parts.

But this one relies a bit too much on vibes for me. It doesn't have the acting performance punch of Infinity Pool, and feels more like a great short story that was expanded into a full-length film.