Holly is a high school student who has a smaller brother suffers from the disease Thompson. One day, the kid goes away and leaves his damaged Holly. Three years later, she finished with school and working at a market. Holly is convinced that saw his brother vanished and, following clues, arrives in the town of Riddle, who happens to be the place where they live the last two guys i saw brother before they disappear. Riddle appears to be a town at the gateway to hell-look desolate and sparsely populated. The city, however, and some dark secrets, and they are brought to light when Holly continues to dig deeper and deeper.