La caliente niña Julietta (1981)

julietta and Pierre are a couple whose marriage is so adrift as Mario and Silvia.
They are friends and sometimes dine together. But Silvia’s lover Pierre and Julietta
is the lover of Mario. Silvia’s desperate to own a mink coat and Pierre, as his lover,
I purchase. Silvia hides it so that Mario does not find out, but this, he discovers,
and gives it to her lover Julietta.