Dr. Adrian Helmsley, part of a worldwide geophysical team investigating the effect on the earth of radiation from unprecedented solar storms, learns that the earth's core is heating up. He warns U.S. President Thomas Wilson that the crust of the earth is becoming unstable and that without proper preparations for saving a fraction of the world's population, the entire race is doomed. Meanwhile, writer Jackson Curtis stumbles on the same information. While the world's leaders race to build "arks" to escape the impending cataclysm, Curtis struggles to find a way to save his family. Meanwhile, volcanic eruptions and earthquakes of unprecedented strength wreak havoc around the world.

Clark (Tanya Dempsey), a young Mathematics major at University, thinks she's found the best deal for student housing: a group of squatters who live in an abandoned hospital secretly. The quirky residents let her into their community provided she follow the rules, including not telling anyone about her living arrangements. All seems wonderful, until she discovers that the reason that the hospital was abandoned was a series of murders in the 1940s by a strange "shrieking killer" who was never captured - and the discovery that someone who's living in the hospital is using occult means to bring back the demonic "Shrieker".

Teenager Jones has opted not to go to college and is instead renting a room in a boarding house to work on his writing skills. Soon, Jones finds himself dividing his time between two women: a young actress named Lisa and a photographer named Jane. After Jane's ex-boyfriend arrives to help her recover from a car accident, Jones begins to understand just how much he cares for her.

William, a Harvard psychology professor is having trouble dealing with life after the death of his wife when he meets a beautiful woman named Ali. As their relationship grows, he begins to question her secretive past, which he discovers is linked to a series of murders that the police are investigating. Tim Matheson (Animal House, The West Wing) stars.

A group of college friends get together for a murder mystery weekend, but what starts as a little friendly game gets dark and bloody when they start actually being murdered.