User blog comment:Umbrello/Creepypastas in movie form!/@comment-25226524-20140822014444/@comment-1186783-20140822141252

I love Trick 'R Treat (I think we're thinking of the same film based on your description, but there's no O in the center word, just 'R.  This distinction is important solely because there's a completely unrelated movie called Trick OR Treat).

I think Martyrs is unbelievably overrated, though. To me it didn't seem meaningful, it was just one more torture porn that went out of its way to tell us how important it was.