The world as we know it no longer exists. A virus, La Rossa, has spread across the planet, exterminating adults. Hidden in the woods are Anna and her little brother Astor.
Anna left in search of supplies. When he returns home he does not find his little brother who in the meantime has been kidnapped by the Blues.
Anna, in search of Astor, arrives at the gates of the villa where the Blues live with Angelica at the head who shows her subjects that evening Picciridduna, the last adult left in the world.
After a night of partying Anna goes to look for her brother Astor who, however, wants to stay with the Blues, she has discovered that there are other children in the world, she no longer wants to be confined at home.
Anna reaches Pietro and discovers that Astor has never arrived, but above all, she sees that the boy is covered in spots, he has fallen ill.
Anna and Astor decide to leave together for Italy, maybe there someone has managed to find an antidote against La Rossa.
