Alberto Angela explores the Piccolomini Altarpiece with sculptures by Michelangelo, and the beautiful frescoed Piccolomini Library within the walls of the Siena Cathedral

Tiziana is confused because she has no clue that she might be a suspect. Raimondi, who shows up with Rivera, is confused because he doesn't realize Tiziana is Luca's sister. Poor Tiziana!

Eva goes to see Armando the mechanic, disguised as Franco's rich cousin. She intimidates him with her fancy language and manages to get the computer back. Franco has to find a job to pay his rent and tuition.

Martino, Sally, and Peppino are watching the TV show Missing, where there is some news about where Martino might have been sighted. A very special appeal is made that's very disconcerting for Martino. Peppino is philosophical about the whole thing.

Karen continues to do her work for the Americans, spying on Olivetti and the Community Movement. Dalmasso and Mauro are seriously trying to undermine Olivetti's efforts to get elected and to bring him to his knees financially.

Andromeda, a true animal lover, tells us another story of an abandoned animal, this time a very unlucky cat.

Manara, and Raimondi meet with their chief, Casadio to discuss the case and Manara's status, but the meeting has an unexpected outcome. Meanwhile, the only real suspect is Luca's sister!

Eva and Dante have a little competition going on whose dishes are more popular. Lorenzo shows up having made a decision Eva is none too happy with. A little crisis ensues.

While Martino plays his guitar for Sally, Peppino figures out that three's a crowd and leaves. Ginosa has become a bustling tourist town, and Peppino is back at work as a "tourguide."

The election results have come out, and they're disappointing. Grazia gives Adriano all her support, and this gives him the hope he needs to push ahead with his dream.

The Siena Cathedral is large, but it was supposed to have become much, much bigger. Alberto Angela tells the fascinating story.

Manara is back in the saddle. Raimondi leaves for Rome after a frank conversation with Luca, and another one with Marta. Quattroni has some important information weighing on him, and goes to talk to Manara.

Eva and Dante finally get some time alone at her apartment, now that Lorenzo has gone on a trip to Florence. That's their hope anyway.

A famous TV personality arrives in Ginosa and wants to talk to Peppino of all people. She thinks she has him figured out.

At the Olivetti home, it's Christmastime, and there's an air of celebration among the members of the extended family. Karen, who is listening in, is engulfed by feelings of nostalgia for her mother.