Grimm (2011–2017)

Grimm follows Portland detective Nick Burkhardt as he discovers he is a Grimm—an inheritor of abilities that allow him to see and confront Wesen, creatures hidden within human society. The series blends police procedural elements with dark fantasy, using folklore-inspired mythology to frame investigations that intersect with secret communities and ancient rivalries. Its mix of episodic cases, world-building, and evolving character relationships shapes a contemporary interpretation of fairy-tale lore within a crime-drama setting.

Från IMDB:
A homicide detective discovers he is a descendant of hunters who fight supernatural forces.