After a massive anxiety attack, Sam Atkins left his high-powered job in the City and committed himself to life on the road in a small van. Six months in, he's running out of savings and coming to the conclusion that he might have to go home to his emotionally abusive family.

Needing time to think, he takes a walk through a copse by the Cornish roadside, only to stumble upon the body of a ritualistically killed sheep. As he's trying to work out what the symbols around the animal mean, the sheep's owner, Jennifer, and her nephew, Ruan Gwynn, come upon him.

Ruan is a kind-hearted young man with a large supportive clan, and since he and Sam feel almost instant attraction, he doesn't want to believe Sam is a sheep-killing cultist. In fact, the moment he lays eyes on Sam's miserable solitary life, he wants to rescue the man. But as the killings escalate, he and Sam need to stop whoever is actually to blame before they can concentrate on saving each other.