In a quiet neighbourhood, one man hides a dark, terrifying secret. For one young couple, the desire to uncover the depths of his depravity will take them to a hideous place inhabited by pain, torture and death. Planting hidden cameras around his house they hope to reveal his crimes. But when they come to retrieve the evidence they find themselves trapped in the killer's lair. They have two options: fight their way out or face becoming the focus of his butchery.