Pechory is a town on the southeastern border of Estonia and Russia. Most Estonians left the area after the Soviet takeover. To Light is a poetic documentary about a mother and her son, who decided to stay behind when the Estonian town of Petseri became the Russian town of Pechory. After seventy years there is hardly anything Estonian left in the town. Linda and Mart Kallas try to maintain contact with their homeland, but that is no cure for their loneliness. Now they only have each other. The mother needs the son and the son needs the mother. The mother is at the very end of her life. The son is searching for a light in the darkness.