We've discussed before the ever-popular "old dark house" type mystery. You know the ones: strangers gathered for some reason - perhaps they were driven there by a storm, perhaps they are gathered for the reading of a will, perhaps they are simply being paid - in a creepy old house, trapped with no way out until morning, and soon they are being picked off one by one. sometimes the murderer turns out to be one of them. Sometimes it's their host. Sometimes it's some previously unseen or unknown third party. Usually there are secret passages or unseen traps. Sometimes, as in
House on Haunted Hill, there's a pit of acid in the basement. Every once in awhile, there are even actual ghosts.
