When he is sent to find his missing coworker, Jack becomes trapped inside the rotting husk of a long abandoned estate. As he searches desperately for a way out, he only finds himself delving deeper and deeper into the darkness, and ever closer to the ominous roar coming from below the ground.

As Grim is leaving his father's funeral he is suddenly attacked on the road at night. A priceless family heirloom, passed down to him as the last wish of his father, is stolen just before he loses consciousness. He awakes within the basement of a roadside inn, his captor watching him through the cage bars before returning upstairs to sleep.