Detective Vera Blanc arrives in a small town gripped by fear when a series of unexplained deaths—some ruled suicides, others murders—begin pointing toward an entity locals have dismissed for generations as mere folklore: a ghost said to haunt the castle overlooking the community. As panic spreads through the streets and suspicion turns toward the supernatural, Vera must unravel whether a genuine paranormal force is at work or if something far more sinister lurks behind the deaths. The investigation draws her deep into the castle's shadowed corridors and the town's dark secrets, where nothing is quite as it seems.