This movie has an interesting lineage in that it was written by W.D. Richter - he of BIG TROUBLE IN LITTLE CHINA and BUCKAROO BANZAI fame. SLITHER can't stack up against those cult classics, but there's a certain offbeat sensibility that shines through I think. There are just a lot of nutty characters running around in this film. It feels like a less comedic AFTER HOURS-y kind of universe and I like that. It's also a somewhat meandering narrative, the kind that were more prevalent in the 1970s, and I miss them. They had a sense of unpredictability and of a story unfolding that seems antiquated now. Not to rant too much, but movies today aren't given this kind of breathing room or time to gently find their way. Seems films now need to be a bit more direct in their approach to narrative in general. Thankfully there are still lots from this period like SLITHER to revisit.
As mentioned above, it is currently streaming via Warner Archive Instant:
(which has a 2 week free trial if you haven't jumped on board yet)