The Mortal Instruments: City of Bones (2013) adapts Cassandra Clare’s bestselling YA fantasy, following teenager Clary Fray as she discovers she’s descended from a secret race of Shadowhunters — half-angel warriors who fight demons, vampires, and werewolves. Mixing urban fantasy, supernatural romance, and YA coming-of-age adventure, the film launched the Shadowhunters screen universe.

Från IMDB:
When her mother disappears, Clary Fray learns that she descends from a line of warriors who protect our world from demons. She joins forces with others like her and heads into a dangerous alternate New York called the Shadow World.