On the anniversary of the start of the Nuremberg trials, 90-year-old Colette Marin-Catherine confronts her past by visiting the Nazi concentration camp in Germany where her brother was killed. As a young girl, she had been a member of the French resistance and had always refused to set foot in Germany. That changes when a young history student named Lucie enters her life. Prepared to reopen old wounds and revisit the terrors of that time, Marin-Catherine offers important lessons