There's lots going on at police headquarters. Even Caterina shows up at just the right moment.

The big question is: Why did Mineo spend so much money on deep diving equipment he couldn't afford?

Thanks to Rosmini, Manara gets rid of his symptoms, but not the problem itself. Toscani is under a lot of pressure from his very pregnant wife.

Luca questions some potential witnesses and suspects. He also takes his personal problem to someone who might have the necessary expertise to help him solve it.

Manara's fumbling with his computer had some potentially disastrous consequences. Meanwhile, the report from forensics is in, and Luca goes to question Giusi — without Rivera.

Luca has an embarrassing moment, and worrying, too. But there is a new case to distract him from his problems. This time, a deep sea diver is found dead.

Manara wraps things up, and he does it with kindness. But later, he gets an unexpected visit.

Giulia Parri and Righini, the editor-in-chief of the newspaper, come in to police headquarters to clear up a couple of things, but then Manara has one of his famous moments of great intuition.

The team is at its best this time. And someone who is usually in the sidelines steps in with prontezza (quick reflexes) and brings this case to a climax.

Manara's team decides the best way to find out what's going on with Righini and Parri is to go to the post-contest party that evening.

Luca gets himself into an embarrassing situation with Marta. But he somehow wriggles out of it with an undercover assignment for her.

Tension rises between Marta and Manara. Then Manara gets stopped by the police. It's just routine, but there's a glitch.

Luca is able to talk to Giulia's father, and then with Giulia herself. He also talks to the people from the newspaper. Marta receives a mysterious phone call.

Luca and Caterina meet up by chance and and are chatting when Caterina's phone rings. Later, Luca and Marta meet up at Ada's and talk about the case, but not only.

Another suspect gets questioned, and then Toscani gets questioned by Manara, on a totally different matter.