In the summer of 1983, a 17-year-old Elio spends his days in his family's villa in Italy. One day Oliver, a graduate student, arrives to assist Elio's father, a professor of Greco-Roman culture. Soon, Elio and Oliver discover a summer that will alter their lives forever.

Adèle's life is changed when she meets Emma, a young woman with blue hair, who will allow her to discover desire, to assert herself as a woman and as an adult. In front of others, Adele grows, seeks herself, loses herself, finds herself.