Here's the synopsis for a cheery little film called Gallows Hollow:
50 years ago it was rumored that Robert Gallow murdered his young wife, Mary. The following year he was found gutted and hanging in the trees... they left behind a baby girl. This morning the bodies of seven campers were found. They were gutted and hanging in the trees.
It looks quite well done, but I didn't see all of it. It clocks in at some 19 minutes, and as I have the 
attention-span of a gnat, I started looking at other things, switching back to the window when I heard something interesting, like bloodcurdling screams.
In the meantime I found this video from a band named Turbonegro. (Hey, I don't make up the names. I just report them.) It wasn't the greatest song in the world, but the theme seemed right for a Halloween post.
At that point, something weird happened. The video for the song was playing merrily along when the movie reappeared . . . in the very same window. This went on for a couple of minutes. Then my browser crashed.
I doubt that it was caused by anything Satanic, such as Microsoft. More likely some random supernatural force of evil.
(The jack o'lantern pictured above is one of many distinctive carvings at this site, any of which can be sent as e-cards.)