On August 9th, 1945, an atomic bomb explodes over Nagasaki. Held prisoner by the Japanese, a small group of Catholic missionaries, including many Canadians, survive the bombing. By forcing Japan to surrender, the bomb freed these women, yet jailed them in a prison of the mind through their traumatic memories of this nuclear holocaust. Some of these nuns put down in writing the grueling tale of their captivity and its horrifying conclusion. These precious documents, many of which have never before been released, show us that the prisoners not only witnessed the devastation caused by the bomb, but also intervened to help the survivors, especially the children. Many years later, some of the Canadian nuns succumbed to the long-term effects of radiation exposure, thereby joining the ranks of the 74,000 victims of Nagasaki. THE SISTERS OF NAGASAKI tells the true story of eight Catholic nuns from Quebec who survived the atomic bombing of Nagasaki. Alain Vézina: “It's a subject that has been in my head for a number of years, but I always differed from it, I had other projects. But it's a beautiful subject, it's a story that deserves to be told“, says Alain Vézina. It took him two years to research and finalize the film. „Initially there were just a dozen photographs, no more." Finally he receives a response, from a 98 year old nun, who is in possession of photo albums that virtually nobody has ever seen.