Here are some suggestions on ways you can entertain yourself this Halloween while staying in your house and lobbing candy at children, like the ravenous zombies they are...
Probably the easiest way to spend Halloween is to stare at a screen, jaw hanging slack, drool glistening down your chin. It'll be like every other night...but spoooookier. You could even make an event of it. Invite a couple of equally misanthropic friends over, or a fine lady...or gentleman, whatever's cool. But, you're going to need some fun, horror-themed movies.
There are always the good generic choices, John Carpenter's The Thing, the Evil Dead trilogy, Shaun of the Dead, or Halloween. But it might be nice to pick something ain't nobody seen yet. One that's not a horrible piece of junk that ain't nobody seen yet. While I'm sure my ideas are far from "underground", maybe you haven't seen Near Dark by the director of the Oscar-winning film, The Hurt Locker! It is nothing like The Hurt Locker. It's a tale of trailer-trash vampires and love. Alternatively, if you don't mind a little body-horror with some "less-than-subtle" social commentary, try Society.
Now if you're really tied to the whole "hermit" thing, you could stand to watch some classics, ones that a room full of fun-loving jerks wouldn't appreciate. I'd start with The Innocents, a beautiful adaption of the Henry James novella Turn of the Screw. It's a ghost story with some fantastic child acting, and it truly is an under-appreciated gem. You could also watch the original Dracula movie, Nosferatu, if you have the patience for silent film. If you need something with color, few are creepier or more disturbing than Lars von Trier's Antichrist. But I should warn you ahead of time, that film has misogyny, nudity, and some of the most uncomfortable gore you could possibly imagine.
There are some ideas, but you don't really want to watch a movie. You want to get up and do something, like...
Sit back down! You don't actually have to get up to do something in the futuristic 21st century, so open a bag of candy corn and pop in a horror game. Now you could play something that we all know and love, like Resident Evil or Silent Hill, but let's forget those stagnant, old franchises and play something more interesting.
The end all be all of terrifying horror games is Amnesia: The Dark Descent. Now, I haven't played it. I'm a little, wussy boy and hate walking down dark tunnels alone, especially when I know something at the end of said tunnels is wont to eat me, but we can probably trust hundreds of youtube reaction videos people have made while playing this game. It's scary. Let's watch some now...
If you haven't played video games since the SNES and find polygons unnerving then you could play Lone Survivor, a side-scrolling, horror game with an art style reminiscent of the 16-bit era that still manages to be effectively scary. However if you're low on cash and/or time, you could play a very short, free game called The Staircase. And if you enjoy abstract, psychedelic horror, you could buy The 4th Wall for an extremely low price.
After recovering from the seizure The 4th Wall more than likely threw you into, you probably want to do something to relax, so why not...
Oh yes, literature. When I say "book," I use the term loosely. Not everyone reads a thousand words per second, and we can't all tackle a novel in a night. We can probably skip classics like Frankenstein or Dracula. If you have the tolerance to read the literary equivalent of ambien then you could use some H. P. Lovecraft. Or if you like to enjoy your books, why not open up Oscar Wilde's The Picture of Dorian Gray.
That's not the only mildly-horror-ish work Wilde wrote. You could also track down a copy of his short story, The Canterville Ghost. It probably won't "scare" you. It's romantic-comedy with a ghost. Now, if you don't like laughing or happiness then you could read The Yellow Wallpaper, which is by far one of the most disturbing short stories you could ever pick up. It's a good example of how mood and narrative can construct something more unnerving than the typical "scary monster" can alone.
To end on a classy note, I'd like to recommend my favorite poem, My Last Duchess by Robert Browning, the scariest poem ever.
Hopefully now, you'll go on to enjoy Halloween without the tiring alcoholism and skimpy costumes that fetishize this children's holiday.
And if all else fails, there's still the best Halloween special ever...