In Versillia's sandy beaches during the summer of 1956,  a gawky adolescent, Sandro, spends his vacation by the sea, along with his family and the intriguingly beautiful Laura, wife of Sandro's older brother, Renzo. Under those circumstances, strange as it may seem, at first, Sandro seems annoyed by Laura's presence, however, little by little, as the two of them spend more and m...！