A Tennessee man was startled when he saw an eye peering back at him through a hole in his flooring and discovered two half-naked men with chemicals used for making methamphetamine.

Paul Mohlman was watching television on Monday when he said he heard a loud sound from the flooring at his home. When he went to investigate, he saw a hole where his radiator connection used to be.

"There's a hole in the floor where the radiator pipe used to be, and I can see there's light coming through the hole from the crawl space. I look in the hole and there is an eyeball staring back at me. A green eyeball," Mohlman said.

When he called to the man, he said the response he gave was incoherent.

That's when he noticed the man was very dirty and was not wearing shoes or a shirt. He also believed the man was on drugs.

Mohlman said he called the police and said, "This is going to be the strangest call you've had all day, I guarantee it. There's a half-naked man under my house and I'm not sure what he's doing."

He then warned his intruder that he had a rifle for his security.

When police officers arrived, they discovered a 24-year-old black man in the crawlspace but did not find the man that Mohlman described to them. He says he saw a man similar to the one he saw through the floorboards in a surveillance video from a nearby bar.

He found muriatic acid outside the entrance to his crawlspace, which made him suspect they were trying to find other ingredients to make methamphetamine.

Mohlman went to the media in order to warn people about leaving entrances to their homes unlocked.

"There are crawl spaces just like mine at almost every house in this neighborhood and none of them are locked. I bought brand-new padlocks to install on the crawl space doors. I learned the hard way. So, hopefully nobody will have to go through what I went through," he said.

"Looking down through that hole and seeing an eyeball flash back at me — a green eye - I'll never forget it," he concluded. "It's the stuff of horror movies, honestly."

Here's more about the bizarre case: