Monica and Michele and Laura and Paolo are about to get married. The two couples, planning a romantic wedding for two, are gripped by anxiety and stress: Laura hopes this second chance, in the company of her best friend Monica, will go better. Meanwhile, Cristina and Emanuele are back at school. The big day has arrived: Monica and Laura are preparing for the wedding, unaware that their future husbands are still asleep. A phone call from the two brides will wake them, and they, panicked, will try to arrive in time for the celebration. Giulio and Stefania, the best men, are also getting ready, but an emergency disrupts their plans.

Monica can't accept Michele's death and learns that he, too, wanted to have a child with her. Paolo, however, to avoid thinking about the loss of his best friend, works hard, with Adriano's help, to organize the perfect funeral. Meanwhile, Stefania has given birth to her twins, Rebecca and Rachele. Lea and Ermanno spend the night together, and for Lea, the event must remain a secret. Meanwhile, Cristina signs up for a kickboxing class where she meets Raoul, a very handsome boy, who turns out to be her teacher. Laura tries to get Paolo to react by having him read Cristina's essay, in which her daughter mentioned Michele. Monica makes a shocking announcement.

Laura's success spreads quickly thanks to a flattering newspaper article, but the editorial staff aren't as enthusiastic about her friend's book. Maya, Rosa, and Lea recognize themselves in Laura's portraits of women in her book and have no intention of forgiving their friend for being publicly exposed. Laura tries to clarify things with her friends, but fails to achieve anything. Monica and Adriano's relationship is flourishing: the awkward ornithologist manages to fulfill the expectant mother's every wish, but from Heaven, Michele is distraught over the choices of his loved ones.

Stefania has disappeared. Giulio finds himself alone to care for the twins while Laura and Paolo try everything they can to find her. Paolo, meanwhile, also swept up in Valeria's enthusiasm, decides to throw himself into the nursery adventure, though he first wants to discuss it with Laura, who, however, is too preoccupied with her sister's disappearance. Stefania, unable to stay away from the girls, sneaks home, but is caught by Giulio, who decides to put her to the test. Paolo, meanwhile, finds himself having to deal with Laura's constant professional successes, which, while helping the family budget, also exposes him to some worries.

When Laura returns from her business trip, she finds no one at home to welcome her. The newly minted writer realizes she may be neglecting her family and decides to put her career aside to devote more time to her children and Paolo, but Clelia warns her that some opportunities only come once in a lifetime. Laura must leave again to meet with a French publisher and doesn't know how to tell Paolo, who, meanwhile, is having serious trouble with his nursery. His partner, partly out of guilt and partly to show him her support, decides to invest part of the book's proceeds in the tranquility of a greenhouse. Michele appears to Monica in a dream and reveals that a man is about to enter her life.

Laura leaves for Sorrento without clearing things up with Paolo, who is increasingly jealous of the publisher's relationship with his partner. Both, hoping for the other's call, wait for the situation to resolve. Despite this magical moment in her career, Laura is sad and constantly thinks of Paolo, from whom she expected greater support at such a delicate moment in her life. Paolo dreams of Laura and Marco, overcome by passion, but then finds himself in Michele's "office," where he reassures him about his partner's behavior. Laura, over the phone, is unable to confess to her partner about the evening spent with her publisher. Giulio tries to win Yang's affection by giving him gifts, but it is Clelia who restores the balance between the two.

Christmas is just around the corner, and Monica, intent on instilling the holiday spirit in her son, entrusts her brother-in-law with preparing the Christmas dinner at their house. After speaking with Monica, Adriano confides in Paolo, who advises him to take his mind off things and think of someone else. The family is all busy with New Year's Eve, but Cristina has no desire to celebrate. Laura suggests Paolo invite Valeria and Gianluca to the party Clelia is throwing. Mario, overcome with jealousy, demands an explanation from his wife about her relationship with the man he doesn't know, and she confesses that it's a past romance.

Paolo and Laura's relationship seems to be booming after their renewed intimacy, but Laura senses Paolo is hiding something from her. On Michele's advice, Paolo has decided not to be honest with his partner, and when he hears that Valeria has left Gianluca, he fears his betrayal might be exposed. Haunted by remorse, Paolo dreams that everyone has discovered his betrayal, but when he wakes, Laura reassures him of her love, promising she will never leave him. Monica discovers that Adriano spent the night at Bea's and is furious with jealousy, while Mario clearly tells Clelia he will never go back.

Laura thinks back to Paolo's confession and can't come to terms with her partner's betrayal. Paolo tries to make amends, but the writer won't listen to reason and forces him to keep the secret from their children. Adriano continues to frequent Bea's house, and Monica, to disrupt her brother-in-law's life, hatches a plan to sabotage his routine. After spying on Adriano, Monica becomes obsessed with his physical prowess. The ornithologist gives her walkie-talkies because he has decided to accept Bea's proposal to move in together. In the editorial office, Monica berates her friends for not encouraging her to indulge Adriano's feelings because now she has lost him forever.

Laura wants to draw boundaries between her and Paolo and labels everything in the house to emphasize their separation. Her friends also encourage the writer's strategy of tension, while Paolo becomes angry. Adriano undergoes a true transformation after Monica's declaration of love, flaunting his physical abilities. Cristina becomes furious when Paolo asks her to end her relationship with Raoul. Laura is worried and tries to understand with her friends the nature of her partner's distress, so she visits Valeria. The gardener admits she has feelings for Paolo, but hasn't seen him since.

Monica suffers from nightmares after discovering that Adriano has a wife. Meanwhile, from Heaven, Michele verifies the veracity of his brother's secret marriage. Upon learning of Raoul's illness, Laura overcomes her embarrassment and offers her support to Cristina. Monica believes that Adriano doesn't truly love her, but sees her as a human being worth saving. Meanwhile, from Heaven, Michele is moved when he hears his brother confide in Paolo about his decision to recognize his son. Emanuele has lost his mind and can't come to terms with Viola's abandonment, which leads him to even neglect his studies.

Paolo leaves home and moves into a new apartment while he waits for things to settle down. However, the separation doesn't help the couple, and both think about the times they spent together. Emanuele is in a deep crisis. Viola opens up about his situation, and he confesses that he'll never find a boy who loves her as much as he did. The day of the final exams arrives. Cristina and Martina use every available cheating technique, while Emanuele is tormented by his thoughts. Viola had decided to reveal her love to the boy, but Cristina dissuades her so as not to disrupt the exams. Meanwhile, the exam questions aren't what their aunts had predicted, and the whole class panics.

After shutting Viola out of his thoughts, Emanuele has thrown himself into studying and prepared a 1,400-page thesis aimed at impressing Ugolino. Meanwhile, Paolo feels like a failure and tells Cristina they'll soon find a new house to move into. Paolo doesn't have the courage to tell Laura he doesn't want her to leave. Laura, too, is eagerly awaiting these words, but neither of them can bring themselves to tell the other. Emanuele and Cristina, still struggling with their final exams, must deal with an unknown and very mean professor.

Everyone in the family is busy for New Year's Eve, but Cristina has no desire to celebrate. Laura proposes to Paolo to invite Valeria and Gianluca to the party organized by Clelia. Mario, in the grip of jealousy, asks his wife for an explanation about her association with the man unknown to him and she confesses to him that it is a past love affair.

The relationship between Paolo and Laura seems to be booming after the newfound intimacy, but Laura feels that Paolo is hiding something from her. On Michele's advice, Paolo has decided not to be sincere with his partner and, upon hearing the news that Valeria has left Gianluca, he fears that her betrayal may come out into the open.

Haunted by remorse, Paolo dreams that everyone has discovered his betrayal but when he wakes up Laura reassures him of her love, promising him that she will never leave him. Monica discovers that Adriano spent the night at Bea's and is furious with jealousy while Mario clearly tells Clelia that he will never follow her steps again.

Laura thinks back to Paolo's confession and can't find peace for her partner's betrayal. Paolo tries to fix it, but the writer doesn't listen to reason and forces him to keep the secret with her children. Adriano continues to frequent Bea's house and Monica, to create havoc in his brother-in-law's life, implements a plan to sabotage his habits.

Monica, after spying on Adriano, is obsessed with his physical prowess. The ornithologist gives her walkie-talkies because she has decided to accept Bea's proposal to move in together. In the editorial office, Monica reproaches her friends for not encouraging her to indulge Adriano's feelings because she has now lost him definitively.

Laura wants to put boundaries between her and Paolo and labels everything in the house to underline their separation. Even her friends encourage the tension strategy that the writer is carrying out, while Paolo gets angry. Adriano experiences a real metamorphosis after Monica's declaration of love, showing off her physical qualities.

Cristina flies into a rage when Paolo asks her to end her relationship with Raoul. Laura is worried and tries to understand with her friends what the nature of her partner's illness is and, for this reason, she goes to find Valeria. The nurseryman admits that she has feelings for Paolo, but that she has never seen him again.

Monica suffers from nightmares after discovering that Adriano has a wife. Meanwhile, from Paradise, Michele ascertains the veracity of his brother's secret marriage. Aware of Raoul's illness, Laura overcomes her embarrassment and offers her support to Cristina.

Monica believes that Adriano doesn't really love her, but sees in her a human case to save while, from Paradise, Michele is moved when he hears his brother confide in Paolo the decision to recognize his son. Emanuele has lost his mind, he can't find peace over Viola's abandonment and this leads him to even neglect his studies.

Paolo leaves home and moves into a new apartment while waiting for things to settle down. However, the separation does not help the couple and both think of the moments spent together. Emanuele is in a deep crisis. Viola makes sure of her condition and he confesses to her that she will never find a boy who loves her the way he loved her.

The day of graduation arrives. Cristina and Martina use all the existing copying techniques while Emanuele is tormented by thoughts. Viola had decided to reveal her love to her boyfriend but Cristina dissuades her so as not to disturb the exams. Meanwhile, the tracks are not those expected by the aunts and the whole class panics.

After having excluded Viola from his thoughts, Emanuele threw himself headlong into the study and prepared a 1,400-page essay with the aim of astonishing Ugolino. Meanwhile, Paolo feels he has failed and tells Cristina that they will soon find a new house to move to.