The coastal town of Blythe’s Cove has been battered by relentless storms and endless rumors for centuries. Mara Glynn, a disillusioned historian, arrives to study the weather anomalies but instead stumbles across the diary of a woman who vanished without a trace in 1847. As she digs deeper, Mara begins to experience visions — shipwrecks, ghostly cries, a figure watching from the cliffs. Locals warn her to leave the past untouched, but Mara is too entangled, and the deeper she goes, the closer the past gets to consuming her own soul.