He waited for the "jumpscare," the loud scream or the masked face to pop up. It didn't happen. Instead, the runner in the video reached out a hand—covered in a black latex glove—and tapped on the glass. Tap. Tap. Tap.

The notification sat at the top of Elias’s phone like a dare: .

Elias turned around, but the room was empty. The only thing left was the sound of a new file being created on his hard drive: . He didn't want to know what was in that one.