You have been feeling followed and observed for a while now but you don't really have any evidence that there's anything following you.

You have started a treatment for persecutory delusion but it isn't helping at all.

You're letting you guard down lately. That's a big mistake. You didn't lock your bedroom window.

While you were starting to fall asleep you heard your bedroom window open.

You smell a wave of a horrifying miasma of blood and gore.

It's there and its intentions aren't pure.