The events of the detective novel take place in Rome, which appears from the author's imagination, not at all like the one everyone is used to. People disappear without a trace, like an ordinary student from a locked apartment. The police soon gave up, and Marcus, a specialist in anomalies who has the ability to see the message of evil in the most complicated crimes, took up the search for the girl. On his way, he meets Sandra, a forensics inspector whose job it is to photograph the places where the murder took place. As Marcus and Sandra try to solve a mysterious riddle, a terrifying world hidden in the dark underworld of Rome opens before their eyes. The world of sin and death.