Dr. Casper Darling - Secret Control Video
Channel: Holly Nightmare
Date: 2019-04-08

This video was released as part of an ARG for the video game Control by Remedy Entertainment. Various symbols were hidden in videos released on the game's official YouTube channel, which contained a code to a hidden website on the Control homepage. Once the code was entered, this video would play, and participants could enter their names onto the website. The ARG participants' names were later shown in the game's credits. The website has since been shut down.

I do not own this video. All rights go to Remedy Entertainment and 505 Games.

Source: https://controlgame.com/restricted_area/