An accident involving a 16-years old prompts private eye Corso to an investigation that will unearth a deep web of corruption in today's Rome.

The murder of 13-year-old Yara Gambirasio shocks the little town of Brembate di Sopra, Italy. To bring the culprit to justice, Prosecutor Letizia Ruggeri only has one tenuous lead — a bit of DNA that is not much help without a database to compare it to. Based on a true story.