The young Luca grew up with his uncle Augusto, owner of a shoe store. The latter, determined to "start" the clumsy nephew sexually, takes him to a brothel in Florence and throws him into the arms of the stupendous prostitute Nerina, of whom Luca falls hopelessly in love.

Senta Berger
Nerina

Bruno Valente
Luca

Enrico Maria Salerno
Augusto

Rena Niehaus
Simona

Stefano Satta Flores
Sergio, il camionista

Macha Méril
Clelia, la madre di Simona

Stefano Amato
Ciccia

Antiniska Nemour
Ilaria (as Antinesca Nemour)
Filippo De Gara
Il compagno di Nerina
Dina Castigliego
Rina Centa
La vecchia signora di Firenze
Tino Polenghi
Giuliana Rivera
Rosanna Rovere
Roberto Ferlicca