The story usually follows a familiar "lost media" or "deep web" trope:
The phrase is a notorious internet creepypasta and "lost media" legend. While it sounds like a cute animal video, it is actually a fictional horror story about a supposedly cursed or disturbing file. Summary of the Legend Kittens 13.mp4
: A user finds a file titled Kittens 13.mp4 on an old hard drive, a shady forum, or a file-sharing site. The story usually follows a familiar "lost media"