This movie isn't a comedy - it's erotic. Stefano (Glenn Saxon) and Elisabetta (Colette Descombes) are in trouble in their marriage. They go to the Netherlands to visit their friend Alexandra (Pier Angeli). Alexandra falls in love with Stefano. It origins a menage à 3, originated by Stefano's love for both Elisabetta and Alexandra.
Pier Angeli (billed as Anna Maria Pierangeli, her birth name) had her career downhill when she went to Rotterdam, in the Netherlands, to act in this movie. It seems that the 37-year-old actress accepted the role of Alexandra in a last (and desperate) effort to save her career.
After this movie, Miss Angeli still participated in four other films - one in 1969, two in 1970, and one in 1971. She committed suicide on September 10, 1971 at the age of 39.