Finally, it is Maria's birthday and the grandparents bring out their gifts.

Before the party, Lele gives his daughter her birthday present. As the dancing begins, Maria and Rebi are not exactly at ease.

Giulio is still looking for a girlfriend for Lele and Alice is helping out with a list of her friends. Ciccio either has a cold or is pretending to. At the clinic, a suspicious fax arrives for Lele.

Ciccio is in bed pretending to be sick when his grandparents show up. They have a gift for him. At the clinic, a woman shows up and is examined by Mariano, but there's a problem.

Giulio takes Lele to an exhibit in order to have him meet the lady from the fax. Lele goes home only to find a new guest, not a human one.

Mariano is seriously worried about the incident in the examining room. Some people can't help but tease him, however. At home, Ciccio is still "sick," but isn't thrilled with being served soup rather than lasagna. Giulio is being an idiot as usual, teasing Lele about Irene in front of the children.

The whole family is reacting to the new situation with Irene, a possible date for Lele. Giulio is there too, putting a lot of pressure on Lele who is quite reluctant.

We discover where Alberto's favorite T-shirt is hiding. Lele is looking for any excuse not to go to Irene's house for dinner, and his parents-in-law show up in time to wonder where he is going and give him a rough time.

Lele goes to Irene's house, but neither he nor Irene is really at ease. Meanwhile, the Martini's next-door neighbor stops by to complain about the dog.

Lele and Irene aren't exactly at ease as they eat their fish dinner. Giulio has the audacity of calling Lele to find out how things are going. Back at home, Maria and Ciccio wonder about their father remarrying and what that would be like.

Lele and Irene have some awkward moments at dinner and afterwards. Giulio is back at the house with Alice, wondering how the evening went. He can't help saying inappropriate things and Alice finally gets fed up with him.

Giulio shows up early to the house to find out how things went between Lele and Irene. Lele gets teased by just about everyone about his "wild night." At the clinic, the woman who had accused Mariano of molesting her shows up again. This time it is Lele who has to deal with her.

Lele gets a surprise visit at work. Later, he discusses it with Alice. Mariano comes back to work with some baccalà, a sort of salted codfish that lots of people love, but lots of people hate.

Ciccio and Libero are watching TV when Alberto comes to ask about his tee shirt, and the doorbell rings. It's someone about the dog. Lele goes to Irene's place to talk to her.

It's dinner time in the Martini household. Ciccio is finishing his homework, Alberto is going to play soccer with some friends, Maria apologizes to her father, and Giulio shows up to make trouble, as usual.