Grainy, low-resolution videos of a woman (presumably "Mrs. L") in a domestic setting.
Audio files that start as normal household sounds but devolve into distorted screaming or mechanical static.
The filename is widely associated with a viral creepypasta or "lost media" horror story that circulated on platforms like TikTok and Reddit in late 2023 and early 2024. The Legend of "MrsL_2023.rar"
In reality, It was created as part of an ARG (Alternate Reality Game) or simply as "analog horror" content designed to spook viewers.