Chiara is a brilliant lawyer with a happy life in Rome but she left a life behind with a sister and a mother in the southern Italian town of Matera. Something makes her return to her hometown.
Chiara finally believes in Roberto's innocence, but needs to prove this beyond a doubt to the court at Potenza. Meanwhile the children have their own troubles.
In their investigation, Chiara and Daniele come across the name of Martino Sinistcalchi, the deputy mayor of Potenza. The sisters are determined to find out more about him.