16 Weirdest Horror Films You've Never Seen

A film that somewhat flew under the radar when it was released a few years ago, Bad Milo follows a man named Duncan (Ken Marino) who’s been having some stomach problems as of late and can’t figure out what’s wrong. Unfortunately for him, his doctor explains that these problems are being caused by "a little trooper" in his "pooper."

Groaning about his irritated bowls, Duncan looks about as freaked out to hear the news as anyone would after such an innocuous explanation. And that's before he figures out that the minuscule invader is actually a cannibalistic demon who has manifested in his intestines out of the frustrations he experiences in life, then proceeds to repeatedly escape Duncan's anus and kill off anyone who bothers his host. Let that sink in for a moment, because Bad Milo actually succeeds in spite of its rampant stupidity.

Duncan goes on to find out that his butt demon is actually genetic; his father has his own called Ralph, and the little guys actually duke it out. And watching two intestinal monstrosities fight to the death is something you absolutely must see before you die.