The footage shows the grim-looking animal crawling next to a wall.
It looks like a sausage around five inches long with a thin tail.
There are no visible legs yet it makes its way across the floor much like a worm.
Bex Deen – who was filming the chilling sight in her home in Southampton – could be heard saying: “It’s an alien, oh my god.
“I’ve never seen anything like it.
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“What is it?”
After the discovery, Bex asked her friends what they thought it could be.
“That thing is absolutely gross,” one said.
“I’ve never seen something so disgusting… get rid of that please.”
Another admitted that while the video creeped them out, they found it impossible to look away from the bizarre-looking creature.
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But others suggested it could simply be a larger-than-normal rat-tailed maggot.
Rat-tailed maggots are the larvae of certain species of hoverflies.
They are typically found in stagnant water such as lagoons and manure pits.
It’s not the first creature to have dumbfounded the internet in recent weeks.
Daily Star Online revealed how there were fears of a mutant creature outbreak after an influx of bizarre animal sightings.