A horde of rattlesnakes inexplicably descends into Eden Valley, terrorizing an isolated family and forcing them to fight for their lives.

After Jane's first marriage collapses, she and her new husband Patrick Brody attempt to build a new life and move to a new state. However, her ex-husband follows them with a view to revenge.

For 11 years, Beth's life is limited to working nights in a convenience store while her daytime hours are spent caring for her bed-ridden, bitter and abusive mother. All that keeps her going is a voice on the radio of a psychologist, Dr Roland. Her obsession grows to the point where nothing, not even murder, will stop her from getting to the woman she desires!

Charlie and Rhonda are a sweet and comfortable married couple on vacation with their lovely daughter Daphne. They find a rundown boarding house and its haggard owner, Joseph, an ex-con whose mother has just died and left him the property. He doesn't know why this cheerful couple would want to vacation in the worst part of Los Angeles, but he doesn't know they're visitors from outer space, and their idea of fun is murdering and eating humanity's worst.

High-priced prostitutes are being systematically murdered, their corpses mutilated, and a bizarre South American symbol painted in blood is found at the scene. The cop investigating is out to solve the crime before his ex wife, a reporter, becomes the next victim.