Lazy Halloween train [Bundled, Level 4+]

Here's the thing, I wanted to make a fancy train with a nice puzzle and horror related descriptions, but... I forgot to get ready on time.
I somehow was living in a world where Halloween was a month away, not couple days! Not only haven't I bought cool games but I also discovered that several of the bundle keys I had kept for the purpose of adding them to this train have been given away for free at some point. That's the true horror, isn't it, having those extra keys you don't know what to do with.

Here's the sad, sad shorter than expected train
Feel free to share your favorite scary movies in the comments! The more obscure the better, I'm looking for something new to watch. :)