The witnesses questioned by Torre furnished some important information about the murder. Gaetano meets the new public prosecutor who is not what he expected. Renzo makes the acquaintance of Livietta's substitute ballet instructor.

At the police station, there seems to be a match for the murderer. In class, Camilla does the roll call and discovers Luca Foglietti is absent once again. She goes to the window to investigate.

Camilla gets caught at the school window by the new principal. Having seen what she saw, she tries again to get some information from her students. Meanwhile, Berardi and Torre search the apartment for clues, and Berardi talks to the doorkeeper of the apartment building.

Ferrari finds a plane ticket in the victim's name and calls the travel agency to find out more. Camilla and Martina pick up the kids at dance class and the conversation gets around to the new substitute teacher Camilla had no idea about.

Camilla goes to see Luca's mother and learns why she doesn't want to call the police about her missing son. Gaetano is rushing to the airport, where Torre and Ferrari are waiting for the victim's wife to make an appearance.

Rotunno's wife had heard the news report in the bathroom of the airport, so she made a change of plans in a hurry. At home, Livietta and her mother are having a chat about school, while Camilla's phone keeps ringing and ringing in the living room.

Gaetano gets a different story from the doorman than his wife had given, and even has some new important details to share. Gaetano reports on the case to the prosecutor and brings up dinner again. At home, Camilla mentions the substitute dance teacher to Renzo...

Gaetano and Camilla finally meet. They talk about the case but not only, and they go to Luca's house to talk to his parents.

Camilla remembers something about the last time she saw Luca and tells Gaetano. She questions her class about Luca, too. Meanwhile, Torre and Ferrari go to Menicucci's place.

Gaetano's team finds an important lead which they get ready to act on. Livietta has to wait to get picked up again. Camilla analyzes the case with Potti, as she irons.

An evening at home: baked lasagna and some casual sparring about Livietta's substitute dance teacher. Finally, Gaetano and Camilla talk by phone and she is able to tell him her hypothesis.

Camilla figures out how to get a message to Luca. Torre gets some information out of the director at Money Service.

Sandro Menicucci confesses to having killed the drug dealer and talks about his parents. Camilla is wondering what to do about the appointment with Luca. Gaetano has drinks with his new boss to celebrate their first solved case

Renzo reads about the murder in the newspaper and suspects Camilla of getting involved, which she denies, of course. She goes to see Gaetano to get him to go with her to the spot where Luca and Gloria are hiding out.

Berardi and Camilla try to reach Luca and Gloria but there are some glitches. Back at police headquarters, Torre and Ferrari gain some knowledge about Rotunno's contracts.