For Elio it is the last chance to save the situation, but a revelation arrives that calls everything into question.

In 1990 Arianna makes an unexpected move. While in the present the circle around Elio is tightening.

Young Elio discovers Arianna's well-kept secret. In the present, Elio closes an old unfinished business.

In the present, the newfound friendship between Costanza and Elio is put in danger. Mamo's 1990 party leads to unexpected consequences.

The fateful summer of 1990 sees Elio getting closer to the young Arianna. In the present, however, the relationship with his interior designer wife, Isotta, is at risk.

In 1990, Elio, in love with the girl, tests her theory. In the present, now an adult lawyer and family man, he discovers unsuspected aspects of Arianna.

In the present, Elio is the main suspect in Arianna's death, while in 1990 the young Elio tries to warn her girlfriend.

In 1990 Arianna disappeared. Today, the discovery of her body forces Elio to face a past that he believed had been removed forever.