So the snake picked a fight with a weird-looking guy, only to discover too late that said guy was really just the butt-end of a sky-scraping gigantic bitemonster with fang-studded limbs. And then the snake lost his mind and did a bunch of stupid shit that pissed off the monster even more, while screaming, "NO...NO! THIS CAN'T BE REAL!!" and babbling about his family and that girl snake he liked but never had the balls to approach and NOW IT'S TOO LATE.
So basically a personal-grudge-themed kaiju movie in miniature.