A Change of Seasons (1980)
A married couple brings both of their lovers with them on their vacation.
husband knows
Emotion (2011)
A wife is sexually unsatisfied and takes on a lover. Her husband seeks the help of a sensual woman to aid them with their sexual problem.
Before the Vigil (2013)
A cheating wife is in a coma and will die soon. Her husband contacts the men in her life and informs them of her condition.
Friends with Benefits (2012)
Alex and Jessica pretend to be married to join a swinger’s club. Meanwhile, a husband in the club gets jealous because his wife is always screwing the same hot woman. From New Sensations
Bali (1970) aka Incontro d’amore – Italy
A wife wants to cheat with a husband’s friend, but he’s too immersed in his spirituality crap to care.
SAMA-809 Document Production Is Wooed By A Damn Beautiful Wife Too Perfect (2014)
Two husband watch their wives via hidden cameras and see if they will go with random guys who try to pick them up.