We discover that Margherita Hack was a devoted fan of the long-running TV series, Un posto al sole [a place in the sun]. She explains why. Francesca goes back to Trieste and meets up with Eda who talks about having lived in the same house with Margherita Hack.

In this segment, Margherita talks about her choice not to have children and also discusses her position regarding God. She can't prove he exists nor can she prove he doesn't.

Even though Aldo and Margherita were very different in many ways, they came together in their skepticism. Towards the end of her life, Margherita couldn't move around much, but her brain never stopped going.

Margherita left a legacy of progress, both scientific and social. Perhaps she is still looking down on us, since an asteroid was named after her: 8558 Hack.

Manara and his team are still looking for the hit-and-run driver who killed the tramp, and investigating the vineyard owner's disappearance. Lara gives Manara a clue as to why she's still angry with him.

Manara makes an important and unexpected announcement to his colleagues, but gets interrupted by some disturbing news about the town psychic.

Interrogating the wife of one's boss might be cause for some nervousness, but Manara seems to enjoy it. And Luca also has some news, which slips out very casually.

At police headquarters, everyone is thinking about what they will do when they get off work, but then there is a phone call that changes everyone's plans. A fall onto the rocks by the beach, a book with an intriguing design, and we're off to a new episode with Luca Manara.

The investigation begins. Manara and Rivera go to see the victim's wife, while Toscani calls a tow truck. Then all hell breaks loose in a house nearby, where there's been a gas leak.

The autopsy report comes, and Manara goes to talk to the victim's widow. Marta goes to talk to his lover. Marta gets a phone call, and her colleagues realize, with surprise, who her father is.

Both the victim's wife and his lover are questioned at the same time, one by Luca, and one by Marta. Each has a very different memory of what Fello was like.

How good of a painter was the victim? Not all the people who knew him have the same opinion. Luca and Toscani go to see the picture framer and learn a few things.

Luca and Marta finish their conversation but get interrupted. Later, Luca looks after Alice so that Toscani and Sardi can have an evening out. While he is there he makes a phone call.

While having a drink with Ginevra, Luca notices a painting that looks like it could be one of Fello's. The next day, as he is waiting to talk to his boss, Raimondi shows up and asks him for a favor.

Casadio says the case is clear to him, and doesn't seem very open to Manara's theories. Marta talks to Cristina and finds out Fello had recently bought a camera he urgently needed.