The name likely refers to content created by or featuring individuals named "Kels" and "Cass." In many cases, these are private videos (such as family memories or vlogs) accidentally made public or shared within small social circles.
The ".mp4" naming convention is a hallmark of internet horror stories (creepypastas) and Alternate Reality Games (ARGs) . These stories often center around "cursed" or lost media files that supposedly contain disturbing footage. KelsCassVid.mp4
Sometimes, specific file names become the subject of "lost media" searches if they were once hosted on platforms like YouTube or Vine and subsequently deleted. 3. Technical or Data-Specific References The name likely refers to content created by