This series begins with Diabolik, the greatest criminal of Italian comics or fumetti as they are called because of the "clouds of smoke" (speech bubbles) present in comic strips. Fumo means "smoke." In this segment, various personalities describe the character Diabolik, both the good and the bad.

Imma manages to interview Stacchio's father, who is not exactly forthcoming. Back home, Imma gets complaints about her cooking and they listen to the news report about the missing boy.

We see the underside of a Ferrari as an inspection is carried out. Carmine Sessa, a classic car expert, talks about the Spider model and the Daytona model, which was built in a limited quantity, almost exclusively for the American market. Fun "fact": Some say the yellow color was named Fly, standing for "Ferrari Light yellow." The color was suggested by Fiamma Breschi (a close friend of Enzo Ferrari's). Fiamma means "flame" but she didn't want the color to be Giallo Fiamma "flame yellow" (named after her) and suggested "fly."

Leaving school, Valentina and her friend meet up with a certain Samuel who has a little present for Valentina. Imma and Calogiuri see Stacchio's friends and ask them some questions, with the pretext that Calogiuri had lost his dog.

The passion for vintage cars can become a real disease. Being the owner of a car and being a collector are two different things.

Imma gets some information from her "helpful" colleague and goes to Eustacchio's school to find out more. Viewers might recognize his teacher.

There are a great many unique automobiles in the collection. In the early twentieth century, there was no metallic paint, so other solutions were found to produce a special finish, such as Lunar Chrome, a technique using mother of pearl and fish scales.

Calogiuri shows up at Imma's office with a possible piece of evidence, meriting a trip to see Stacchio again. They head out together but there is some troubling news awaiting them there.

Italy has an important tradition of auto d'epoca (vintage cars) and auto da corsa (race cars) and RAI TV has dedicated a documentary series to this topic. This first segment is introduced by former racing driver René Arnoux, who competed in 12 Formula One seasons. You might notice his French accent. It also features Silvia Nicolis, daughter of the collector of vintage cars, Luciano Nicolis.

Imma attends Stella's burial at the cemetery and is struck by the writing on a wreath. She introduces herself to the woman who placed it on the gravesite and tries to find out a little more about Stella's life. She is also drawn to the ossuary or wall burial site bearing the name, Centino Latronico. We recall him as the man Imma suspects might have been her real father.

Imma talks to Stacchio again and finds a few more pieces to the puzzle. She also talks to the coroner to learn some details about Stella's death. She also has new information about a certain phone call.

Imma goes to the land registry office in Ginosa to find out more about Palazzo De Nardis. She manages to obtain some information from the person in charge and goes to see Signora D'Avena.

Imma interviews De Nardis who tells a good story, not that Matarazzo and Imma are totally convinced, however. And then they go to the bar and find out a bit more about their suspect.

Imma stops by to see her mother, who has been opening all the drawers, creating more work for Nikolaus, her caregiver. Imma and Matarazzo make the trip, on narrow mountain roads, to Ginosa, where De Nardis lives. He invites them in.

Imma and Calogiuri manage to interview Bizzari who admits a few things about Stella. Diana confesses that even though her husband has come home, it's not any better than before, when he was gone.