Steve, a young professional snowboarder, ruins a high-paying photoshoot with a silly prank, causing him, his girlfriend Branka and fellow snowboarder Josh to be left behind on the mountain. They seek shelter in a garish, loud aprés-ski tavern that is hosting an all-night party for the last night of the season. Things go from bad to worse when a scientific experiment conducted by a local entrepreneur unleashes an epidemic of zombies and mutant wildlife, but this is mostly lost on the local drunkards as they themselves are not always so easy to distinguish from zombies. Steve, Branka and Josh have to find a way to survive this hellish night. Finally, their epic battle for survival leads to them having to use their snowboarding skills to defeat the raging aprés-ski zombies once and for all.

In 1974, Oxford professor Joseph Coupland invites introspective lad Brian McNeil to film his experimental treatment of subject Jane Harper, aided by student assistants Krissi Dalton and Harry Abrams. Jane, a young woman with no memory of the past and repeatedly abandoned by foster families, believes herself possessed by a doll named Evey that gives her telekinetic power. Keeping her awake in an isolated house, Prof. Coupland intends that she puts her evil energy into an actual doll, thereafter destroying it to heal Jane. Amidst strange things happening in the house, Brian feels sorry for Jane and, researching her tattoo, learns an evil secret about Jane's past, and of Prof. Coupland's motivation.