The space shuttle Churchill is assigned to observe Halley's Comet under the command of Colonel Tom Carlsen. They see a strange form attached to the comet and Carlsen goes with a team to investigate. They find three humanoid life forms in caskets and they bring them to the Churchill. However, Earth loses contact with the shuttle and the Space Research Center sends another spacecraft to search the Churchill. They find the crew dead and the shuttle burnt and one rescue pod missing. They bring the...

En route to visit their grandfather's grave (which has apparently been ritualistically desecrated), five teenagers drive past a slaughterhouse, pick up (and quickly drop) a sinister hitch-hiker, eat some delicious home-cured meat at a roadside gas station, before ending up at the old family home... where they're plunged into a never-ending nightmare as they meet a family of cannibals who more than make up in power tools what they lack in social skills...

A young family are visited by ghosts in their home. At first the ghosts appear friendly, moving objects around the house to the amusement of everyone, then they turn nasty and start to terrorise the family before they "kidnap" the youngest daughter.