Over a long holiday weekend, unable to escape the confines of their sorority house, a handful of unsuspecting girls are left behind to enjoy the quiet sanctuary. The normal house staff has taken off for the weekend, leaving the girls to fend for themselves. Thankfully someone was kind enough to send them a temporary replacement chef to cook their meals. However, when the girls start disappearing one-by-one, they begin to suspect something may not be quite right.

A turn of the century ritual to raise the feminine evil goes horribly awry and leaves a she demon dormant on the ceremonial grounds. Sixty years later a young couple moves into a house built on the ancient grounds and their daughter's murder leaves the house abandoned for yet another forty years. Now, six fun loving college students are hired to clean up the house for a greedy real estate mogul who plans to sell it for a large profit. They unwittingly awake the demon and only the ultimate sacrifice can save the world from a future of unspeakable evil.

In 2009, six friends arrive at an isolated cabin to enjoy a long weekend in the snow. An epic snowstorm interrupts their vacation, trapping them on the mountain and resurrecting the haunting ghosts of the Donner Party. But, are they true 'entities' or is it simply 'cabin fever' that brings out their fears and darkness, causing friends to turn against each other as reality deteriorates around them.