Journalist Joe Oakes is a born skeptic who makes his living exposing supernatural hoaxes. But his stay with a cult-like religious group on Scotland's remote Pig Island might be enough to turn him into a believer.

When the island erupts into bloodshed, Oakes must abandon everything he thought he knew to discover the secret behind exiled cult leader Malachi Dove, who lives alone behind a wall of electricity and toxic waste on the island's far end.

As the cataclysm of violence crashes down around him, Oakes is ultimately forced to confront the very nature of evil itself.