Summer, 1967. La Goulette, the touristic beach of Tunisi, is the site where three nice seventeen-year-old girls live: Gigi, Sicilian and Catholic; Meriem, Tunisian and Muslim; Tina, French and Jewish. They would like to have their first sexual experience during that summer, challenging their families. Their fathers, Youssef, Jojo and Giuseppe, are old friends and their friendship will be in crisis because of the girls, while Hadj, an old rich Arab, would like to marry Meriem.

Clovis Blaireau is a private detective. It is charged by Nadège de Courtaboeuf wife knew wealthy industrialist Prosper de Courtaboeuf, to obtain evidence of the infidelity of her husband. Clovis managed to penetrate the intimacy of Prosper, and became his friend. Following diverse Clovis and Prosper adventures will find themselves in Tunisis pursued by a band of Mafioso and by members of the Front of breaking load of Couscous.