He appears in the dark — a shadowy figure with a wide-brimmed hat — and countless people across the world share the same chilling encounter: the Hat Man is watching. Why is he so much more terrifying than other shadow people?

He appears in the dark — a shadowy figure with a wide-brimmed hat — and countless people across the world share the same chilling encounter: the Hat Man is watching. Why is he so much more terrifying than other shadow people?
In the rain-drenched shadows of a small town, a jaded private eye digs into a decades-old family massacre — but what he uncovers inside the Nightingale house is darker, older, and far more restless than murder.