TL;DR it slowly, and mostly asymptomatically, eats its way up your nerves until it reaches your brain and starts eating that. That's when you start developing significant signs and symptoms, by which point, maybe weeks after exposure and without evident illness in the meantime, you're already dead. There's a treatment protocol—it's grueling and if you live, you'll suffer some amount of permanent disability. And, statistically, you won't live. You're dead.

The course after that is a few weeks of effectively rapid-onset severe dementia. Animals don't get violent and unpredictable because the virus is simply angry-making—they get that way because they stop recognizing once-familiar things and can't remember how they got where they are, and so are constantly fucking terrified, plus their throats are closing up so they can't eat or drink (assuming they could remember to, or how to) and are experiencing dehydration and starvation. That's your near future by the time there are signs of the disease. You're about to dehydrate to death over a period of low-tens of days while becoming increasingly confused and frightened by your situation and by your own loved ones.

It's absolutely horrifying.