Bay of Fires in Tasmania is a place where people come every summer to enjoy a simple beach holiday either in their own shack or at the campground. Quiet, idyllic and isolated it seems like a very unlikely place for a murder. Yet in the space of just over a year two young women (of remarkably similar appearance) have met with foul play. Young surfer Chloe simply disappeared without a trace after telling her family she was going surfing and Swiss backpacker Anja's body was discovered washed up on the beach on Boxing Day. Suddenly the close knit community is on edge - people are locking doors and watching their backs, something they've never had to do before.
Sarah Avery has just arrived back in her home state after a stint living and working in Queensland. It is obvious she is seeking solace in her family's beach shack, yet she is unwilling to talk about what caused her to leave her boyfriend and the job she loved at a Barramundi farm. Choosing to spend a lot of time fishing alone or swimming in the freezing waters of the nearby beach and lagoon, Sarah is working hard to bury her recent troubled past. It is only when she strikes up a friendship with journalist Hall Flynn (who is covering the murder mystery) that she begins to let her guard down.