It all began late one night at a pub in Dudley, England; staffers of the Chapel House Pub were cleaning up, closing down the bar at the end of the night, when they were given quite the scare.
Eerie footage uploaded to YouTube shows a wet floor sign moving around on its own as a staffer leaves the room.
The sign then falls over and the staffer looks horrified.
Moments later, a man comes to inspect the area, and as soon as he turns his back, a mop falls over.
The staff says the cellar at the pub was formerly used as overflow cells for the nearby police station.
"Sometimes you can hear footsteps coming upstairs-- but then they just stop," Ben Parke told The Express and Star.
Watch the full surveillance video below, then weigh in: Is it a hoax or is it haunted?