Marcuccio has gotten hungry, and so he's gone to see the only person he could trust, Lara's zia Caterina. But by the time anyone could come to help her, he'd disappeared again, leaving his jacket behind. Lara's dog, Brigadiere, gets a good whiff and goes off with Luca to look for Marcuccio. A storm has come up, making things more difficult.

Alessio has a very creative idea for saving the beach club. Tonino is skeptical, but gradually warms to the idea.

Lara and Luca go to interrogate a suspect whose only alibi for the night of the murder depends on Marcuccio, who is still missing. Meanwhile, Giulia intercepts a cryptic phone call.

Alessio is back at the beach club and shares a bed with Tonino's daughter, Martina. Once again he goes to the train station to meet up with his friends in Amsterdam...

Amidst murder and insomnia, Manara is attempting to eat his croissant during the autopsy in the morgue. And Ginevra... well, she has an infallible solution to help him get back to normal.

Anna and Marika tell us the story of Rosina, who in the midst of deception and intrigue, ends up getting married. But to whom? The one she loves, or the one who wants her at all costs?

The police intercept a phone call between Marcuccio and his mother, but it's too short to trace. Marcuccio recites the first line of Leopardi's most famous poem, "L'infinito" [The Infinite] to his mother. Giulia spends the night at Lara's and they watch the movie of the famous party. The next day Lara has some interesting news for Manara, from both Giulia and from her aunt!

Lara and Giulia have some catching up to do, but how candid are they being with each other? Do we detect a bit of jealousy? Meanwhile Commissioner Manara has to deal with both Romei, the chicken guy, and his buxom, brassy wife, who keeps trying to catch Luca's eye.

Alessio discovers why Tonino was so upset. The beach club is in danger of being demolished.

The arrival of Giulia Chiamparini, the expert in Cultural Heritage, makes quite a hit at headquarters!

Manara goes to see the mother of Fazi's missing assistant, Marcuccio. It turns out he's "different" but with a phenomenal capacity for numbers. He's also a big guy, with big feet! Meanwhile, Lara and Luca are called to their boss's office. He wants results, fast, and so he's called in an expert in Cultural Assets from Rome to work alongside them.

Alessio resumes his trip, heading for the train station, but on the way, he runs into none other than his former boss, Antonino from the beach club.

Murder in the library. The curator of the town library was found dead by his secretary, and the assistant librarian hasn't shown up for work. Some valuable correspondence is missing, and there are some suspicious shoe prints on the floor. Manara and his team have gotten busy trying to figure it all out.

Encouraged by the woman who took him home with her, Alessio phones his mother and leaves a message. He then relaxes, and even falls asleep, but gets a rude awakening!

At the train station where Alessio had been kicked off the train, the police officer tells Alessio to call home to get picked up. Alessio does make a phone call, and he does get picked up, but not by his parents!