It seemed that the office block was awash with paranormal activity. Indeed, the sound of rattling handles and slamming doors echoed down the empty corridors. Yet all of a sudden, the creepy building fell silent once more.
The frightening sequence of events lasted a little under four minutes – and in 2012 someone from the office block posted the footage online. Soon, the clip had mystified many people, who couldn’t find a logical explanation for the highly irregular activity.