Kniramaniks is the titular main antagonist of the 2024 horror film Skinamarink. It is a supernatural being that is responsible for the kidnapping and imprisonment of Kevin and Kaylee, acting as a guardian for them within its house-like realm as well using them as his personal "playmates" to be with for all eternity.

He could have even fallen into a coma after his accident, and when the screen says 572 days,  it could be referring to how long he has been asleep.