Housed inside a vault in the basement of an abandoned school lurks an evil that has been locked away for over a hundred years. When a teacher and 5 students visit the school to archive any memorabilia before it's torn down, they mistakenly free the horrific spirit, turning the school into a deadly prison. Now they must face the evil and banish it to the vault once again before it kills them and escapes to destroy the world...

When an old house in a small town is razed to make way for a shopping mall, the crew unearths four unmarked graves. A professor from a nearby university is asked to find out who the bodies are, but when she and her students arrive in town and begin to ask questions, they discover that no one wants to talk to them or help them in any way.

In this sequel, two juvenile detention officers must escort a group of criminally-inclined urban kids to the country where they are being forced to renovate a shelter for teens as punishment for their crimes. After one of them is shot by a local, the survivors seek refuge in the home of a voodoo woman, where they mistakenly summon legendary clown-faced demon Killjoy who begins hunting them down one by one.