A modern supernatural horror film that explores the dark side of the human psyche, and the terror in facing up to one's darkest fears. Set in London, England, the film begins with a group of theological students who decide to test their faith by proving the existence of Hell.

A young woman studying the habits of webcam chat users from the apparent safety of her apartment witnesses a brutal murder online and is quickly immersed in a nightmare in which she and her loved ones are targeted for the same grisly fate as the first victim.