Few people have begun to hear mourning from a large abandoned mansion. It is constant crying and screaming, as if someone is in pain. Some teens/kids(either) decide to investigate without telling their parents on a dark night. They all go together, thinking they'll find the source of eerie noises. They see what they figure is a ghost, and afraid, they run, seeing it's too dark and stormy to leave. Instead, they camp out in the mansion, making a small fire.
Hungry, they begin to hear noises, and are terrified. Few escape into the storm, but reaching the city, they realize a couple friends have gone missing. Bringing the news to adults, who bring i to other adults, who bring it to reporters, who bring it to TV, call the investigators. However, after a building search, they find the bodies are missing. Where have they gone?
Weird plot off the top of my head. It'd make a good RP. :D