A chorus rehearsal. Karol and Henryk are among the soloists. Like most of the singers, the two men lead the pretty quiet lives of senior citizens. They have been a couple for years, but no one outside their apartment knows about it. One day, they receive an invitation that shakes their meticulously hidden everyday life.
37-year-old Marta gets married and wants to have a baby. But her toxic relationship with overbearing mother complicates her life in many ways.
On September 1st, 1939, Nazi Germany invades Poland, unleashing World War II. On September 17th, the Soviet Red Army crosses the border. The Polish army, unable to fight on two fronts, is defeated. Thousands of Polish men, both military and government officials, are captured by the invaders. Their fate will only be known several years later.