Eileen McParland, a socially awkward university professor, travels to Ireland to explore its historic castles. What begins as a simple getaway to explore her ancestry turns into a chilling mystery when she notices strange occurrences and unsettling interactions among the castle’s guests.

After a young employee, Leah, disappears. The whispers of ancient folklore and a haunting melody tied to the castle’shistory seem all too real to ignore.

As the days tick by, Eileen realizes that someone—or something—has a dark agenda, and the clock is running out. With each passing hour, the mystery grows more twisted, and Eileen finds herself drawn to Tom, a brooding psychologist and musician whose own troubled past seems entwined with the castle’s secrets. The attraction between them deepens, but so does her suspicion. Could Tom’s hidden wounds be linked to Leah’s disappearance—or is he hiding something far worse?

With a quirky detective trailing behind, the investigation races against time. As the countdown continues, Eileen must uncover the truth before the darkness claims her, too. But the closer she gets to the answers, the more she wonders if she’ll survive to tell the tale.