The myth of the Doppelganger has lasted for centuries and receives a modern updating here as two identical women meet but realise the differences between them are in their personalities - one is normal whilst the other is plagued by nightmares. Their meeting, however, results in a battle for their souls.
When a young man inherits an ornate mirror following the death of his Satanist father, he finds that it reveals his father's attempted use of black arts. As the dead man's son continues his father's work, he puts the lives of those around him in danger, particularly when he forges a link to Hell through the power of the mirror.