Deep in the heart of the jungle exists an elemental creature with an eternal hunger. Once every quarter century it emerges to feed, and every time its fate is entwined with the same human family.

Jill, a tenacious UMass freshman, abandons her studies for an off-the-grid snowboarding trip. When their SUV mysteriously becomes lost, temperatures fall and the group dynamic unravels as a virtual and then literal witch hunt begins.