A moral action drama showing a crisis and breakup of a married couple from the perspective of the both spouses, Roman and Magda. Through flashbacks the film reveals a shocking study of the disintegration of the relationship between two adult people and their gradual dehumanization.
The Milewskis are a middle-aged couple. Witold and Magda, both occupied with careers in managerial positions, create a solid, well-matched relationship. They have no children - this is Magda's decision, who preferred to pursue a career rather than take care of diapers. However, little remains of the bond they had at the beginning. Each Sunday, each of them cheats on their partner, and they both know nothing about it. Everything changes when Witold's younger brother Franek, a handsome geologist, shows up at their place.
A school teacher from a small town in Poland comes to Warsaw to see his estranged wife, a window dresser, in the hope that she will return to him rather than give him a divorce.