Julio and Ana have been together for more than fifteen years, but their marriage has fallen into a routine, leaving them to wonder every day whether it is still worth staying together. One evening, they invite their upstairs neighbors over. The couple is much younger, and they make Ana and Julio an unexpected proposal that turns the evening upside down for all four of them.

Alex and Emily, a young couple who recently moved to Los Angeles, are trying to settle in and meet new people. One day, they meet a polite stranger in the park who invites them over for dinner.

After their sons get into a fight at school, the two sets of parents meet at one of their apartments to discuss what happened. The conversation begins politely and formally, but gradually descends into a storm of mutual accusations and old resentments.

A group of longtime friends and their partners gather for dinner. Looking to make the evening a little more exciting, they agree to a game where every incoming message must be read aloud and every phone call answered on speaker.

Wealthy real estate agent Vincent and his wife join his sister Élisabeth and her husband Pierre, both university professors in Paris, for dinner. The evening also includes Claude, a longtime family friend and trombonist. What starts as a casual family gathering quickly turns tense when Vincent reveals the name he plans to give his unborn child.

Jack and Sally and Gabe and Judy are two married couples who have been close friends for many years. One day, Jack and Sally stun their friends by announcing that they have decided to separate but remain friends, convinced that the change will be good for them. The news makes Gabe and Judy see their own marriage in a different light and honestly reconsider how they feel about each other.

The film follows five married couples, each with their own secrets and unusual fantasies that they keep hidden from their partners. Their inability to openly express their feelings and thoughts eventually leads to a series of unexpected events.

Four couples get together for dinner on the night a mysterious comet passes over Earth. What begins as an ordinary evening takes an unexpected turn when the group starts experiencing a series of strange and unexplained events.

Ethan and Sophie’s marriage is on the verge of falling apart, and they turn to a couples therapist in an attempt to save their relationship. The therapist suggests that they try to bring their relationship back to life by spending a weekend at a secluded country house where, according to him, many couples have already managed to save their marriages.