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.

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.

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.