Anna and her son eight years, Anders, are always on the run because abuzivului’s father Anders. Moves to a secret address in a giant apartment building. Terrified that her former husband might find Anna buys a speaker to be sure it is safe as Anders asleep. But the speaker can hear strange noises coming from another part of the building. Anna hears what he thinks he is killing a child. Meanwhile, Anders appears accompanied by a mysterious friend, black hair, departing and comes when he wants. She knows something about the sound from the speaker? Why is blood in his drawings Anders? They are still in danger?