Andrea had just turned fifteen when he decided to take his life. He seemed to be a happy teenager, with good grades at school and an excellent relationship with his parents. There seemed to be no explanation for what he did, until his mother accessed his Facebook profile and reconstructed the terrifying bullying and cyberbullying her son was going through at school.

　Diana, a young woman who lost her sight, finds a guide in a Chinese boy named Chin. Together they will track down a dangerous killer th rough the darkness of Italy.