McKamey Manor is known as the “scariest” haunted house. Before entering, visitors must sign a 40-page waiver, hand over a signed medical release and declare a safe word.

The interactive experience is personalized to each visitor’s worst fears. It is a “rough, intense and truly frightening experience,” McKamey Manor warns on their website.

If a person has the physical and mental strength to finish the house, they can walk away with a lifetime of nightmares and $20,000. But they also have to follow a required set of rules or they’ll lose out on some of the cash.

Those rules include no cussing, drinking, smoking, running, eating, or touching the actors or props.

The website provides a heavy disclaimer on the kinds of conditions guests should expect including low visibility, wet conditions, physically demanding environments and close contact with “very real and graphic scenes of horror.”

Russ McKamey owns and operates the terrifying experience, which appears to take more than 10 hours to complete. People can take the tour by themselves, which is called “Desolation,” or they can take part in a two-person “personalized interactive experience.”

WATCH EXTREME Haunted House: 'McKamey Manor' Will Give You $20K If You Can Make It to the End 1
Russ McKamey

WATCH: If you’re unable to watch the video below click on this link.

All it costs to enter is a bag of dog food. Russ McKamey, the owner and mastermind behind the manor, has five dogs to feed.

No one has ever completed the tour.