A documentary filmmaker travels to a UFO convention in New Mexico where he meets a local artist with a dark secret. As they follow a trail of clues they discover disturbing sightings and question all they believe when they become immersed in the enigmatic culture of the Pueblo Indians.
In the twelve days leading up to Christmas, the residents of the snowy and isolated town of Woodridge are being murdered in a variety of gruesome ways by a psychotic Santa and Mrs. Claus. While the small-town cops scramble to protect the townsfolk, the killings seem to center around one young woman who may be the final victim on Santa's list. As the slaughter continues and the bodies pile up, it seems that nothing and no one may be able to stop the murderers before they complete their own deadly take on the twelve days of Christmas.
In an effort to repair their relationship, a couple books a vacation in the countryside for themselves and their daughter. What starts as a perfect retreat begins to fall apart as one loses their grip on reality, and a sinister force tries to tear them apart.
Dr. Emma Collins and her team are spending their third summer on the island of Little Happy studying the effect of climate change on the great white sharks who come to the nearby nursery every year to give birth. Along with the last two inhabitants of this former fishing village, their peaceful life is disrupted when a "scientific" team led by her ex-boyfriend and marine biologist Richard show up looking for three bull sharks who we soon learn aren't just any bull sharks.
Karla, a young medical student, is trying to cure her brother, Blake, from a terminal sleep illness called Fatal Familial Insomnia, where you are unable to sleep until you die. On her quest to treat him, a more sinister reason for his condition is revealed.