For horror fans, Halloween is the most important day of the year. To celebrate horror’s official holiday, ADV presents the 31 Days of Halloween: each day in October, we will suggest a film or film series that we consider essential viewing during the season of fear. This isn’t a “Top 31 List” or a countdown of the “Best” or “Scariest” horror films out there, just a rundown of films that are sure to creep you out or otherwise put you in the Halloween spirit. You can catch the most recent entries in the scrolling marque above, or click here or under “Features” for an archive of all the articles that have come out thus far. Enjoy!