The Oldest Profession (1967)
An emperor finds that the prostitute he hires is his own wife. His wife says she pretended to be one so that she can catch him red-handed, but is that really the truth?
France
A Bigger Splash (2015)
A producer and his daughter visit his ex-girlfriend and her lover in Italy. The producer screws his ex-girlfriend while his ex-girlfriend’s lover screws his daughter.
Sex Games for Couples (1976) aka Fantaisies pour Couples – France
Two couples are cheating with each other’s spouses before having an official wife swap.
Night Games (1980)
A masked man visits a housewife and makes love to her several times. Is he just part of her fantasy?