He hears the knock again and tries to trace the noise, “It’s coming from up here, it’s definitely coming from up here. I don’t know whether I should check it out, I honestly don’t know!”
He decides to check the creepy thing and find out its source but he was too scared to do this himself and decided to leave his camera so that he could record what was happening. When he leaves the camera catches something very very scary, check the video to find out what was the creepy thing that happened.
Watch out the complete video here: