The discovery of the body of an unidentified man, called "Quantunque," sets off a complex investigation full of questions. While the police search for new leads, Anna faces the pain of loss and the desire to know the truth about the victim and his tragic fate.

The evening is a huge success, but not everyone is elated. Marioni has come to the conclusion that his daughter's death was his fault, Matteo's uncle has a somewhat disturbing conversation with one of Matteo's schoolmates, and Domenico tries to talk to Barbara.