Irene is only eight years old when she witnesses her father’s death at the hands of a hit-and-run. Haunted by the sense of guilt of not being able to remember the killer’s face, Irene becomes a rebellious and introverted teen with the sole obsession of getting herself justice.

An app appears on a girl’s phone. What looked like a game is actually a connection to the world of the dead, which allows her to see them through the phone’s camera.