Pietro goes to his saxophone teacher's house to help her with a technical problem. At home, Imma gets an important phone call that has nothing to do with the case she just solved.

Tex Willer is the main fictional character of the Italian comics series Tex, first published in Italy in 1948. The series is an Italian take on the American Old West.

Calenzano finishes telling his story and Calogiuri takes him away. Stacchio's teacher stops by Imma's office with a pupil, Nicolas, who has a story of his own to tell.

We have a look inside the 12-cylinder engine of the Testarossa to see what kind of grade it will receive out of ten.

In front of Imma, Calogiuri, and Diana, Calenzano describes every detail of when he went to Stella's apartment to see her. He's distraught, as he relives the experience.

René Arnoux is back, telling us more about the Ferrari Testa Rossa, and some interesting facts about the evolution of the name. He also mentions the famed TV series, Miami Vice.

This segment is about the film that was made of the Diabolik story. Not everyone was satisfied, including the Giussani sisters, but in those days, certain international standards had to be respected.

Calenzano felt the need to tell Imma and Calogiuri some details about his childhood in Switzerland so that they would be able to understand what had happened between him and Stella.

Over time, Diabolik gained new status. It became cool. Nowadays, whether you read comic books or not, you know who Diabolik is.

With Francesco Calenzano, whose nickname is Franco, Imma reminisces, in a friendly way, about the summers when they were younger and about the music they would listen to, notably, E ti vengo a cercare (I'll come looking for you).

Here are two cars symbolizing the dream of many Italians: The Ferrari Testarossa and the Autobianchi Bianchina. Let's discover their stories.

Some of the stories in Diabolik come from the outside, notably from readers. A few of them are recounted here. They often related to controversial topics in the news and in some cases, charges were pressed and copies of the comic book were seized and destroyed.

Imma clears up some more questions with Eufemia Abate about the person Stella was smiling at in the photograph.She has that person summoned for some questioning.

We look at a Maserati Khamsin, in almost mint condition, something extremely rare. In addition, the power steering and braking are very evolved for a car from the seventies, and can be considered on a par with modern cars.

Diabolik isn't the work of one person, but rather the result of a group effort. Each contributor has a distinct role but they all have to come together, mindful of keeping the continuity from one episode to the next.