About eight seconds in, though, a blurry figure appears on the stairs by the wall.
Users flooded the comments section of the video shortly after it was posted.
“The amount of anxiety I have from this video. That’s someone literally poking their head to look at you,” one user wrote.
“I downloaded it and zoomed in and honestly it don’t look human,” another said.
Some suggested the footage of the possible home intruder might have been staged.
“Obviously this is planned. The caption says ‘I was home alone,’ [he] wanted us to know,” one user wrote.
In one of his many follow-up videos, reubix_cube denied that the video was “staged,” and confirmed he lived with relatives who were not home at the time.
He said he’s not “calm” and has been having trouble sleeping since he shared the video.
“This stuff has happened my entire life,” reubix_cube said. “We live next to graveyards.”
He said he needs answers. Commenters agreed.
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