A group of people, both men and women, get together to exchange their points of view, practical and theoretical, about sexual life and the relations between couples.

1975: A 200-ton blue whale gets washed up on a local beach and the kids think it’s the biggest thing that’s ever happened in Australia. Behind closed doors, the Mums and Dads of a quiet suburban street are going to celebrate in their own special way, by joining the sexual revolution and throwing a wife-swapping key party. And like the rotting whale, it’s all about to go spectacularly wrong.

Sin-wook and Dong-soo have been friends since they were kids. Sin-wook and his wife swap partners with Dong-soo and his wife. They start playing Strip Go Stop and the game gets serious. The four of them have sex, but they end up falling for each others' wives and husbands and even meet in secret. One day, when their sex life reaches its peak, Sin-wook's wife, Yeon-hee, gets pregnant, not knowing whose baby it is. Her relationship with Sin-wook is on thin ice and then the baby is born. They do a DNA test to find out who the father is.

An affluent, middle-aged couple's uneventful lives are forever changed when they move into an isolated house in the country and befriend an odd, younger couple.

A mystery writer and his wife are terrorized by a swinger couple.

A married man gets blackmailed by a degenerate couple after having a one-night threesome with them.

A prudish married couple feel put upon by the swingers living in their apartment building. One night, by accident, they discover a way to both rid themselves of the “perverts” down the hall and simultaneously realize their dream of opening a restaurant.

A young couple become embroiled with the personal problems of another couple on a yacht moored off Sicily during a turbulent weekend of fun, games, sex games, betrayal, spouse abuse, and murder.

A newly divorced swinger on the prowl goes to work as a detective for a neurotic feminist attorney.

After moving to Palm Springs, a young married couple puts their love to the test when they discover that their neighbors are swingers.

David’s life is on the slide: he’s broke, in the middle of a divorce and ‘can’t get it up’. His girlfriend, Alice, is his rock, but the magazine she writes for is going down and the pressure is on to find a story. While job hunting online, David stumbles across the perfect antidote to his boredom: a ‘Swingers’ site. The resulting inbox of lewd invitations on the home-laptop justifiably upsets Alice, until she realises this could be just the ‘story’ she needs. The idea of uncovering the swinging scene causes quite a stir in Alice’s office and, much to David’s chagrin, she is urged to pursue the story. Their first reluctant foray is an hysterically low-rent initiation, however, an unexpected upturn for David’s manhood is all the extra encouragement they need. As events accelerate beyond their control the once adoring couple become lost and fundamental questions are asked of their relationship.

A dinner party of three couples careens into uncharted territory when the hosts make a shocking proposal. Tensions mount as this evening among friends puts each marriage to the test.