Watch Full Movie Online. The Aurora Borealis is a story of family that is rich in twists and turns. It breaks the depths of the relationship between mother and daughter. A successful lawyer in Vienna, Olga is called back to Hungary when her old mother, Mary suddenly falls into a coma. While Mary is floating between life and death, Olga finds a deeply silent secret. The increasingly passionate research leads back to the post-war Europe of the '50s.