Feeling brave? 

A haunted house in Tennessee is offering visitors $20,000 if you can survive inside its walls.

McKamey Manor, located just outside of Nashville, is "the most terrifying haunted house experience in America," according to WFLA in Tampa, Fla. Nobody has ever gotten through the entirety of the haunted house, which you're not allowed to enter until you've watched a two-hour video, signed a 40-page waiver, created a safe word, provided proof of insurance, obtained a doctor's note and even passed a physical examination, background check and drug test.

As if that's not scary enough, the two-hour video visitors are required to watch is titled "And Then There Were None," and it depicts previous visitors of McKamey Manor who did not make it through the entirety of the tour. "You really don't want to do this," the visitors repeat in the video (warning: the video contains graphic and disturbing images).

The tour is free if you bring along a bag of dog food to help provide for the five dogs belonging to Russ McKamey, the owner of McKamey Manor. McKamey's promised one lucky survivor of the haunted house $20,000 if they can get through the entirety of his new show, titled "Desolation."

McKamey founded the manor in San Diego and now has locations in Tennessee and Alabama. According to Nashville Scene, McKamey phones county officials before doing a show "if you get any crazy phone calls from the neighbors." Nashville Scene reports police stormed McKamey Manor "after a witness reported seeing a screaming woman being dragged from a vehicle" just a few weeks after the Tennessee location opened. But it was all part of the show.

Visitors have experienced swimming through a 200-yard muddy trench containing caimans or swim through a tank full of moray eels, according to Nashville Scene. Other scenarios include needles, tooth-pulling, plastic wrap covering your face and other phobias.

WHNT in Alabama reports one witness seeing a woman being pulled by a chain around her neck, which McKamey later said was a stunt and not real. Many neighbors in both Alabama and Tennessee would like to see McKamey Manor removed from their community, but for now, the haunted houses are still around. A writer at HorrorBuzz even called McKamey a "sociopath." 

If you're too spooked to head to McKamey Manor yourself, you can take a peek at episode eight of "Dark Tourist" on Netflix or watch the documentary "Haunters: The Art of the Scare." 

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