"[John E. Dawdle and Brian Nelson]'s synergy inspires creative and technical sparks that announce them as guiding forces in the ongoing evolution of this genre; Nelson is careful to observe his story from the inside without removing emphasis from characters, and his vision is brought to life by a director who shoots the material in steep camera angles, as if watching critical events from beyond the realm of the living. What they have created together in "Devil" is a movie that accomplishes exactly what it sets out to do, and more: namely, tango with a vivid representation of evil while suggesting, without shame, that the forces guiding the actions of these characters are more than just the stuff of superficial horror film plot devices." - David Keyes, Cinemaphile