January 1942, in Nazi-occupied Poland during World War II. Thousands of Jews have been confined to the Warsaw ghetto for more than a year. Outside, life goes on; inside, they struggle to survive another day. Still, on a cold winter night, a group of Jewish actors manage to stage a lively musical comedy.

Pablo and Blanca have decided to try swinging, but ignore its first and most fundamental rule: to abstain from doing so when things aren't going well in a relationship. To bring this about, Pablo and Blanca each call a friend who is single, Lucas and Mia respectively, thereby ignoring the second cardinal rule: to only swing with another couple.

Tenacity and perseverance are qualities of a good bill collector. You can reach any remote place on Earth, even some other planet in the solar system.