The group goes grocery shopping for their party, but on the way back, Ilaria wants to make a stop. Nobody knows why, or what she plans to do and the situation gets out of hand.

After her trip to the Tiber River, Camilla goes to pick up Livietta at Giulio's house, where the two kids are dancing to Merengue. Camilla has some questions about that. Meanwhile, Berardi and Torre are busy with the coroner, identifying a corpse.

Imma and Matarazzo go to the butcher shop in Grottole and find out some information from both the butcher and a woman seated there. Calogiuri has a little information from the coroner for Imma.

Varricchio is back in the DA's office and tells a different story, admitting he had lied the first time. But is there proof of his new version? At home, Lojacono is shocked by some news he hears on the TV.

Truffle hunting is a peculiar activity, one that requires the collaboration of a dog. And you never want to let on how many truffles you find, even if you are friends with other truffle hunters.

You're going to the supermarket, but you need a few things first, like a list and somewhere to put the groceries. Marika has the answers.

Melania talks about her relationship with her father when he was still alive. He didn't say much, but unbeknownst to her, tried to get a story of hers published. She talks about one her favorite parts of Rome: Isola Tiberina (Tiber Island), the only river island in the part of the Tiber that runs through Rome.

Pasolini doesn't want to talk about his enemies, but does talk about the people he loves the most: simple folk, who might not have even finished grade school. For his early films, he took inspiration from Antonio Gramsci.

It's Pisa. A group of university students living in an apartment together have made a home video of the place, which is a mess, partly due to clogged sinks. Their stay is almost at its end and they're taking stock.

The mouse is still an issue at Camilla's house. At police headquarters, Berardi has his hands full with the mother of the murdered detective and Mattioli's wife.

Lombardi shows up for an informal meeting to talk about a building project. Meanwhile, Imma is driven to Grottole by Matarazzo who is going a bit too fast.

Ottavia and Palma talk about his new apartment and the fact that it is still empty. Lojacono gets some good news from his friend Paolo and shares it with Marinella. He goes to the train station to wait for Laura and gets an idea about the case.

This episode is about a specialty from Colonnata, a little village above Carrara, where marble is quarried. It's pork lard, which may not sound very appetizing but is beloved by Italians all over the peninsula. A little goes a long way, but savored with typical unsalted Tuscan bread, it is pretty special. And marble plays an important part.

If you go to Italy, you will want to know where to go to buy the things you need. Marika is here to tell you all about i supermercati (supermarkets) and other stores.

Melania Gaia Mazzucco talks about one of her novels set in seventeenth-century Trastevere, quite a different place than what we see today. Although she has traveled the world, Mazzucco comes from generations of romani di Roma (Romans from Rome).