In 1983, communist Poland is shaken by the case of high school student Grzegorz Przemyk, who is beaten to death by police. The only witness of the beating becomes the number one enemy of the state.

Poland, 1945. Mathilde, a young French Red Cross doctor, is on a mission to help the war survivors. When a nun seeks for her help, she is brought to a convent where several pregnant sisters are hiding, unable to reconcile their faith with their pregnancy. Mathilde becomes their only hope.