The guard, who in the clip appears to be talking to thin air, had reportedly been speaking to a woman who had died the previous day.
Filmed by a security CCTV camera at the Finochietto Sanatorium care center in Buenos Aires, Argentina earlier this year, the eerie clip, which was recorded at 3am, shows the guard sitting at his desk in the reception area when the automatic doors suddenly open all by themselves.
The guard proceeds to get up out of his chair and walk over to remove the barrier, as though to let someone pass through, yet the footage shows quite clearly that nobody had entered the building.
Even stranger still is the fact that the guard can be seen talking and gesturing, as well as writing something on his clipboard, as though having a conversation with someone and noting down their details.
He then walks to the back, grabs a wheelchair and appears to motion someone to sit in it.
What really makes this whole situation remarkable, however, was the later revelation that the guard himself had apparently witnessed an old woman enter the building at that time.
He had let her through the barrier, spoken to her and even pulled out a wheelchair for her.
It turned out, however, that the woman in question had died the previous day.
So did the guard actually meet and interact with this woman’s ghost in the early hours of the morning or was he pulling some sort of prank ?
You can check out the footage for yourself below.