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 has only a bit of DNA…

Diana, a high-class prostitute trying to escape from a serial killer, suffers a car accident that leaves her blind and kills the family of Chin, a ten-year-old boy.