All towns have secrets. But none like Netherwell Bay...'Sis, I'm in trouble. Real trouble. And I need help.' After receiving a worrying message from her estranged brother, Beth Davis sets out to find and help him, ending up in the strange, coastal town of Netherwell Bay. There, she begins to witness terrifying and unexplainable things, and reports of ritualistic murders have the town panicked. A sinister cult soon makes its presence...