Its

"They were breaking down. These things. Apparently, they just kept coming to the same conclusion. Must go on.

They terrorized, mainly during the daytime, like day walkers, or zombies. Crowding the roads, shopping centers, restaurants, anywhere they could get a good eye at people.

They did anything they wanted to. Not really people anymore, they tried to act human and appear normal in society. For the few who remained. The change must have happened a long time ago, as there was so little humanity left in these things that it was incredible.

Though appearing human from a distance, or even slightly up close, these monsters had a grotesque appearance. Like mimics, they milled through human society, imitating, attacking, and swarming, until nothing remained but them.

The attacks were strange. Merely the personalities of these things were enough to destroy a living being. Bitter, hostile, and passive-aggressive, their behavior towards living things seemed to be their primary weapon. Hauntingly, if you perceived their form as a normal human, the spite and malice were enough to stop your heart cold.

They also spread insanity and preyed on the sound minded with a schizophrenic slurry of exalted emotions and bitter, malicious proclivities against normal tendencies.

And things got openly violent. Murder, torture, and rape were all common fates for getting cornered by one of these monster-like entities. Though not fully immune to the law, they found ways to abduct, lie, and conspire to finish off the last vestiges of a dying human race.

A combination of mutant, freak, mimic, and evil clown, the various parsing of their personalities was starting to show its wear. It was like these monsters couldn't function for much longer, without turning on each other, or themselves. Some of the last humans had noticed, and had breathed a sigh of relief, but there was more to it than that.

Survival against the monsters was on every remaining human's mind. A war of attrition was being fought. The things were starting to fail and die, their schizophrenic scars overwhelming their ability to attack. Where they came from, what made these monsters, and what had happened was not the point anymore. Everything came down to one thing, and one thing only.

Let them die. And no matter what: Survive It."