On the screen, the .rar file icon began to glitch, turning into a grainy image of a doorway.

The rhythm started to sync with his pulse. He tried to take the headphones off, but his arms felt heavy, like they were submerged in honey. The walls of his apartment seemed to breathe, the shadows stretching and retreating in time with the haunting, distorted synths.

Leo sat in the pitch black, gasping for air. He reached for his phone to use the flashlight, but as the screen illuminated, he saw the "Alter Sunday" folder was gone. In its place was a new file, one he hadn't downloaded. It was titled: Thank_You_For_Inviting_Us_In.txt .

After three hours of tunneling through onion sites, he found it. A single, dead-simple link on a text-only board: Download_Alter_Sunday.rar . He clicked. The progress bar crawled. 400MB.