A drug reveals an alien world.
I've heard it described as The Evil Dead - (1981 movie) meets Naked Lunch - (1991 movie). I think it also has a bit of the spirit of They Live - (1988 movie). If you know and liked those films, you'll like this one.
If you like this movie, definitely check out They Live - (1988 movie).
I have no clue how to describe this movie.
It has undertones which could make it very disturbing, however it is half-tainted by and half-infused with comedy. With a unique universe and being extremely watchable, this is definitely memorable and enjoyable.