A new resident was moving into a house in Guilford, Connecticut that was built in 1843. Not long after a mysterious hole appeared in the floor and, according to local police, the man fell, “into the abyss of a 20 to 30-foot well, splashing into extremely cold water that was well over the victim’s head.”
… The gaping hole was a well, which was likely outside of the house when it was originally built. An addition to the house was built in 1981, but the opening to the well wasn’t very well covered — there was no subfloor or well cap, just some hardwood floorboards placed across the top of it.
… The victim was pulled up on a rope by firefighters after 25 minutes in the freezing well water, and is said to have only sustained minor injuries.