Blur

That distinct feeling of terror when walking in a pitch black room, empty and silent. The terror when you feel, hear and smell someone or something's behind you but you can't see nor touch it. Our imagination's fucked up. It conjures up all these creatures, these things to make us scared to enter the dark or to be alone. But what if these things weren't made up. That creature behind you, invisible and waiting; waiting for the right moment to just puncture your skin with a knife and kill you. There was a serial killer with you when you thought you were alone in that room. Sharpening his blades and throwing knives at your head, purposely missing them.