After returning home from the launch of his book about the occult, Daniel Shergold's house is broken into by thugs, who beat his wife to death ad leave him paralyzed. A depressed agoraphobic in his secluded country cottage, Daniel mourns the death of his wife while being cared for by home nurse, Fiona. He is unable to accept the lack of success the police have in finding his wife's killers. Daniel accepts a visit from a mysterious stranger who insists he can help him reap revenge. He agrees and is thrown into a strange and horrific transition into darkness. With renewed strength, Daniel sets out to avenge his wife's murder, but at what cost?