In the dead of winter, a musician travels to a remote cottage to work on new material, but soon finds herself under attack from a mysterious dark presence.
As a trying summer in Toronto comes to an end, longtime friends Shawn and Erin decide to take a week-long camping trip to escape their mounting obligations. At first they revel in the sights and sounds of the countryside, but soon ulterior motives and personal baggage begin to chip away at the foundation of their friendship
Geologists Lauren and Ben, partners in both work and life, investigate a strange anomaly discovered deep in the terrain. Alongside colleague Sam and intern Trevor, the group must navigate an escalating series of horrors that starts once they uncover an ancient force of destruction buried in the ground.
