How hard is it to come up with a decent story? Okay, here goes (off the top of my head):
Caretaker at Alton Towers in the early 30's maybe, stalked a number of villagers, kidnapped and tortured them. Eventually, he was killed by local policemen who felt legal justice was too leniant on people like him. They never found the people he kidnapped and tortured. His house on Alton Towers grounds remained standing, forgotten over time. However, locals have reported strange sightings and noises coming from that area of the land. When the theme park was built on the land, the house was uncovered, disturbed by builders. No-one knows what happened to them, only that they dissapeared and weren't heard from again. Now guests are invited to explore the old house, and as they do, they uncover the mystery of the unhinged caretaker and his victims.
Obviously not for kids, and it's a sloppy idea, but along those lines, it could be a decent scary dark ride. Seriously, they don't have to cater EVERYTHING to children, they have enough rides to go on in the park, give us one that has an age limit or something.
Do do do do do do dooo, do do doooo, do do dooo, do do do do do do do do do do do do dooooo!
No-one recognised Hall Of The Mountain King? Maybe I typed it wrong!